# Thermodynamics - LearnChemE

## by Department of Chemical and Biological Engineering (University of Colorado Boulder)

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#### Description

This project is funded by the National Science Foundation and the Department of Chemical and Biological Engineering at the University of Colorado-Boulder with support from Shell and the Engineering Excellence Fund at CU-Boulder. Its goal is to provide video ScreenCasts for core chemical engineering courses.

Name | Description | Released | Price | ||
---|---|---|---|---|---|

1 | CleanVideoThermodynamics Introduction | An overview of chapter 1 of the Elliott and Lira Thermodynamics textbook. | 10/3/2011 | Free | View in iTunes |

2 | CleanVideoKinetics and Thermodynamics | Discuss the differences between reaction kinetics and thermodynamics and describes how thermodynamics is important in kinetics and reactor design. | 11/23/2011 | Free | View in iTunes |

3 | CleanVideoPT and PV Phase Diagrams | Explains the pressure-temperature and the pressure-volume phase diagrams for single component. | 2/10/2011 | Free | View in iTunes |

4 | CleanVideoPressure-Temperature Diagram | Describes the regions of a pressure-temperature projection and the behavior across phase boundaries. | 2/21/2012 | Free | View in iTunes |

5 | CleanVideoPressure-Volume Diagram | Explains a single-component pressure-volume phase diagram. | 4/5/2012 | Free | View in iTunes |

6 | CleanVideoGibbs Phase Rule | Explains the Gibbs phase rule and applies it to a binary system that has vapor and partially miscible liquids. | 3/15/2012 | Free | View in iTunes |

7 | CleanVideoLiquid Pressure Dependence | Explains that state functions of liquids are relatively independent of pressure and presents examples for liquid water. | 3/14/2012 | Free | View in iTunes |

8 | CleanVideoThe Critical Point | Explains what the critical point is and shows constant volume process at the critical volume, includes a demo. | 3/14/2012 | Free | View in iTunes |

9 | CleanVideoQuality of Steam | Defines vapor quality and compares mass percent and volume percent of steam. | 4/10/2012 | Free | View in iTunes |

10 | CleanVideoAir/Water VLE | Discusses how vapor-liquid equilibrium changes in an air/water system when some of the air is removed. | 2/19/2011 | Free | View in iTunes |

11 | CleanVideoHeat Two Phases at Constant Volume | Heat a single component, 2-phase system at constant volume and describe what phases are observed. | 3/15/2012 | Free | View in iTunes |

12 | CleanVideoSteam Tables: Interpolation | Example problems that calculate enthalpy of steam by interpolation of steam tables. | 7/16/2014 | Free | View in iTunes |

13 | CleanVideoGas Expansion From a Tank | An energy balance is used to determine the final temperature of an ideal gas that expands from a tank into a piston/cylinder. Made by faculty at the University of Colorado Boulder Department of Chemical & Biological Engineering. | 12/16/2013 | Free | View in iTunes |

14 | CleanVideoState Function Explanation | Explanation of state functions and state variables and their application to a chemical reaction. | 2/16/2012 | Free | View in iTunes |

15 | CleanVideoReal Gas Expansion Part 1 | Determine the final state of a real gas that expands adiabatically into a vacuum. | 11/12/2012 | Free | View in iTunes |

16 | CleanVideoReal Gas Expansion Part 2: Excel Solver | he Peng-Robinson equation of state spreadsheet from Elliott & Lira's textbook (www.chethermo.net/software) and Excel solver to calculate the final conditions for a real gas expanding into a vacuum. "Real Gas Expansion Part 1" describes the problem setup in detail. | 2/13/2013 | Free | View in iTunes |

17 | CleanVideoEnthalpy Balance on a Tubular Reactor | Shows how to set up an energy balance on steady-state adiabatic reactor and demonstrates how the heat of reaction results directly from the energy balance. | 2/16/2012 | Free | View in iTunes |

18 | CleanVideoUnsteady-State Energy Balance (Filling an Empty Tank) | Determine final properties of tank to which steam is added. | 2/18/2011 | Free | View in iTunes |

19 | CleanVideoThrottle: Changing Gas Pressure | Determine the outlet temperature when a high-pressure liquid is throttled. | 4/2/2011 | Free | View in iTunes |

20 | CleanVideoIsothermal Ideal Gas Compression | Energy balance for isothermal compression of an ideal gas in a closed system. | 3/15/2012 | Free | View in iTunes |

21 | CleanVideoIrreversible Adiabatic Expansion | Energy balance on an ideal gas that undergoes irreversible, adiabatic expansion. | 2/19/2011 | Free | View in iTunes |

22 | CleanVideoEvaporative Cooling Energy Balance | Apply energy balance to liquid water that is evaporating and undergoing evaporative cooling. | 7/24/2012 | Free | View in iTunes |

23 | CleanVideoUnsteady-State Energy Balances (Steam Tables) | Unsteady-state energy balance on a tank containing steam to which additional steam is added. Uses steam tables. | 4/10/2012 | Free | View in iTunes |

24 | CleanVideoEnergy Balance on a Semi-Batch Reactor | Apply the 1st law to a semi-batch reactor for a fast reaction, so the conversion is limited by thermodynamics. Demonstrates how the heat of reaction appears from an energy balance. | 3/14/2012 | Free | View in iTunes |

25 | CleanVideoWork and Enthalpy Misunderstandings | Discusses three examples related to enthalpy and work changes that are often confusing. | 2/16/2012 | Free | View in iTunes |

26 | CleanVideoEntropy Change: Ideal Gas | Determine the entropy change when temperature and pressure change for an ideal gas. | 2/14/2011 | Free | View in iTunes |

27 | CleanVideoEntropy Change: Gas Mixture | Determine the entropy change when two ideal gases are mixed. | 2/14/2011 | Free | View in iTunes |

28 | CleanVideoEntropy Change for Supercooled Liquid | Calculates the entropy change when a supercooled fluid goes to equilibrium. | 6/2/2014 | Free | View in iTunes |

29 | CleanVideoGas Phase Entropy Change | Calculates entropy change for the irreversible expansion of an ideal gas into a vacuum. | 2/16/2012 | Free | View in iTunes |

30 | CleanVideoSecond Law Application | Uses the second law to evaluate whether a continuous process is possible. | 2/16/2012 | Free | View in iTunes |

31 | CleanVideoCarnot Heat Engine Calculations | Presents calculations for Carnot heat engine. | 2/16/2012 | Free | View in iTunes |

32 | CleanVideoCarnot Heat Pump | Calculate the heat transfer for a Carnot heat pump. | 2/16/2012 | Free | View in iTunes |

33 | CleanVideoAdiabatic Compression of an Ideal Gas | Calculates the adiabatic temperature for compression of an ideal gas, both reversibly and irreversibly. | 2/18/2011 | Free | View in iTunes |

34 | CleanVideoT-S and P-H Diagrams | Explains the temperature-entropy and the pressure-enthalpy diagrams. | 2/10/2011 | Free | View in iTunes |

35 | CleanVideoPressure-Enthalpy Diagram | Explains parts of the pressure-enthalpy diagram for a single-component system and discusses how enthalpy depends on pressure for water. | 4/10/2012 | Free | View in iTunes |

36 | CleanVideoMaximum Work from a Turbine | Determine the maximum work possible from a turbine and determine the outlet conditions. | 4/5/2012 | Free | View in iTunes |

37 | CleanVideoHeat Engine Introduction | Introduction to the Carnot heat engine and the Rankine cycle. | 3/15/2012 | Free | View in iTunes |

38 | CleanVideoEntropy: 2 Explanations | Discuss (1) the entropy change for a continuous engineering operation, and (2) can 100 J work can be converted to 100 J heat continuously? | 3/14/2012 | Free | View in iTunes |

39 | CleanVideoFreon-12 Refrigeration Cycle | Analyze a refrigeration cycle to determine the energy transfer and coefficient of performance. | 3/15/2012 | Free | View in iTunes |

40 | CleanVideoHow to Solve a Steam Turbine Problem | Explains the steps to determine work and outlet conditions for an irreversible steam turbine. | 3/14/2012 | Free | View in iTunes |

41 | CleanVideoRefrigeration Cycle Introduction | Explains each step in a refrigeration cycle and the energy balance for each step. The process is shown in a pressure-enthalpy diagram. An interactive simulation that also demonstrates the behavior is available at http://demonstrations.wolfram.com/OrdinaryVaporCompressionOVCCycleForRefrigerantR134a/ | 2/10/2016 | Free | View in iTunes |

42 | CleanVideoPower Cycle Introduction | Describes the steps in a power cycle that converts high temperature heat into work using a turbine. | 3/15/2012 | Free | View in iTunes |

43 | CleanVideoThrottle Temperature Change | Shows the temperature change of non-ideal gases through an adiabatic throttle due to the Joule-Thomson expansion. | 2/16/2012 | Free | View in iTunes |

44 | CleanVideoExact Differentials and Partial Derivatives | Review exact differentials and partial derivatives using a geometric example. | 3/14/2012 | Free | View in iTunes |

45 | CleanVideoMaxwell Relations: Partial Derivatives | Obtain a relationship for a partial derivative in terms of measurable variables using Maxwell relations and other mathematical relationships. | 4/10/2012 | Free | View in iTunes |

46 | CleanVideoThree Parameter EOS | Introduces the van der Waals equation of state (EOS), which is cubic, and explains its three roots. | 3/14/2012 | Free | View in iTunes |

47 | CleanVideoRoots of Peng-Robinson Equation of State | Discuss the meaning of the three roots of the Peng-Robinson equation of state and the effect of pressure on the roots. | 4/30/2012 | Free | View in iTunes |

48 | CleanVideoPeng-Robinson EOS Spreadsheet 1 | A tutorial on using a Peng-Robinson equation of state spreadsheet. | 2/19/2011 | Free | View in iTunes |

49 | CleanVideoPeng-Robinson EOS Spreadsheet 2 | A tutorial on using a Peng-Robinson equation of state spreadsheet for single-component equilibrium. | 2/19/2011 | Free | View in iTunes |

50 | CleanVideoEnthalpy Departure Function for Throttle Feed | Use the exit conditions from a throttle to determine the enthalpy departure function for the inlet fluid. | 2/19/2011 | Free | View in iTunes |

51 | CleanVideoDeparture Function: van der Waals Fluid | Discusses the enthalpy departure function for van der Waals fluid. | 2/22/2012 | Free | View in iTunes |

52 | CleanVideoAdd Liquid to Evacuated Tank | Discuss what happens when 1 L of liquid is added to a 2 L fixed volume tank. | 2/17/2012 | Free | View in iTunes |

53 | CleanVideoHeat of Vaporization: Clausius-Clapeyron | Estimate the heat of vaporization using the Clausius-Clapeyron equation. | 3/14/2012 | Free | View in iTunes |

54 | CleanVideoHeat of Vaporization: Antoine's Equation | Uses Antoine's equation, which relates saturation pressure to temperature, to determine the heat of vaporization using the Clausius-Clapeyron equation. | 3/14/2012 | Free | View in iTunes |

55 | CleanVideoGibbs Free Energy: T & P Dependence | Describes how Gibbs free energy depends on pressure and temperature to give insight on how fugacity depends on these variables. | 3/14/2012 | Free | View in iTunes |

56 | CleanVideoGibbs Free Energy Pressure Dependence | Plans how to calculate the changing Gibbs free energy with a change in pressure for a single component . | 3/14/2012 | Free | View in iTunes |

57 | CleanVideoFugacity Introduction | An overview of using fugacity in thermodynamics. | 2/14/2011 | Free | View in iTunes |

58 | CleanVideoWhat is Fugacity? | Explains why fugacity is important for single components and tells how it is used. | 3/14/2012 | Free | View in iTunes |

59 | CleanVideoCalculate Fugacity of a Fluid | Calculate the fugacity from enthalpy and entropy data for a hydrofluorocarbon.. | 3/15/2012 | Free | View in iTunes |

60 | CleanVideoSingle Component, Solid-Vapor Equilibrium | Discusses the effect of the amount of solid present at solid-vapor equilibrium for iodine. | 3/15/2012 | Free | View in iTunes |

61 | CleanVideoFugacity of a Single Component | Calculate the fugacities of a gas and a liquid. | 2/14/2011 | Free | View in iTunes |

62 | CleanVideoSteam Fugacity | Determine the fugacity of saturated steam using the steam tables. | 2/14/2011 | Free | View in iTunes |

63 | CleanVideoLever Rule Derivation (P-x-y Diagram) | Uses mass balance to derive the lever rule, which determines the amounts of liquid and vapor in equilibrium given the overall mole fraction and the mole fractions in each phase. | 4/29/2015 | Free | View in iTunes |

64 | CleanVideoLever Rule | Demonstrate how to use the lever rule on a Txy diagram. | 2/19/2011 | Free | View in iTunes |

65 | CleanVideoPhase Equilibrium: Txy Diagram | A conceptual question investigating how the molar composition changes to a vapor-liquid equilibrium system as temperature is changed. | 6/14/2012 | Free | View in iTunes |

66 | CleanVideoPressure Effect on VLE | Describes how vapor and liquid compositions change for a binary mixture as the pressure changes. | 2/13/2013 | Free | View in iTunes |

67 | CleanVideoChemical Potential and Thermodynamic Activity | An introduction to chemical potential and thermodynamic activity and how they are related. | 11/23/2011 | Free | View in iTunes |

68 | CleanVideoWhat is Fugacity in a Mixture? | Explains why fugacity is important for mixtures and tells how it is used. | 2/17/2012 | Free | View in iTunes |

69 | CleanVideoPartial Molar Properties | Presents the definition of partial molar quantities and describes how they could be measured. | 2/23/2012 | Free | View in iTunes |

70 | CleanVideoHenry's Law | Explains why Henry's law is used and shows how Henry's constant is used. | 2/23/2012 | Free | View in iTunes |

71 | CleanVideoVLE and Fugacity | Uses vapor-liquid equilibrium and fugacity to compare adsorption from the liquid and vapor phases. | 2/19/2011 | Free | View in iTunes |

72 | CleanVideoCondense a Binary Mixture | Discuss which species condense when a binary vapor is cooled. | 2/19/2011 | Free | View in iTunes |

73 | CleanVideoCondense Water Vapor from Air | Plots partial pressure versus temperature as the temperature of 50% relative humidity air is lowered. | 2/17/2012 | Free | View in iTunes |

74 | CleanVideoThree-Component Solution Fugacities | Use the fugacities of a three-component system in vapor-liquid equilibrium to determine which component has the highest amount in the system. | 8/13/2012 | Free | View in iTunes |

75 | CleanVideoWhich has Higher Fugacity? | Compares two components and explains which has the higher fugacity in a mixture. Also compares a single component at different concentrations. | 5/20/2015 | Free | View in iTunes |

76 | CleanVideoFugacity Coefficients in VLE | Use fugacity coefficients to determine bubble temperature of a binary liquid. | 2/19/2011 | Free | View in iTunes |

77 | CleanVideoPartial Molar Quantity | Determine a partial molar quantity given a molar quantity dependence on composition. | 2/19/2011 | Free | View in iTunes |

78 | CleanVideoPartial Molar Properties: Binary Solutions | Use molar quantity of solution and Gibbs-Duhem equation to derive an equation for partial molar quantities in terms of a total derivative. Shows how to determine partial molar quantities from graph of molar quantity of mixture versus mole fraction of mixture. | 4/5/2012 | Free | View in iTunes |

79 | CleanVideoRaoult's Law: Entropy Explanation | An explanation of why the partial pressure of a component is lower when the liquid phase is diluted by a second component using an entropy viewpoint. | 3/15/2012 | Free | View in iTunes |

80 | CleanVideoRaoult's Law Explanation | Explains the shapes of the Pxy and the Txy diagrams for Raoult's law. | 4/10/2012 | Free | View in iTunes |

81 | CleanVideoMixing Ideal Solutions | Illustrates the changes in state variables (V, H, U, S, G) when ideal solutions form. | 2/17/2012 | Free | View in iTunes |

82 | CleanVideoAdd One Component to a Binary VLE System | Explain what happens when one component is added to a binary mixture in vapor-liquid equilibrium. | 6/4/2012 | Free | View in iTunes |

83 | CleanVideoAdd Non-Volatile Component to VLE System | A component with a negligible vapor pressure is added to a two-phase N2/H2O system. | 2/14/2011 | Free | View in iTunes |

84 | CleanVideoEnergy to Evaporate Mixture | Calculate the heat required to evaporate a binary mixture. | 3/15/2012 | Free | View in iTunes |

85 | CleanVideoBinary VLE | Vapor-liquid equilibrium calculations for an ideal binary system. | 4/5/2012 | Free | View in iTunes |

86 | CleanVideoBinary Vapor: Partial Condensation | Determine the fraction of binary vapor that condenses as the temperature decreases. | 7/16/2014 | Free | View in iTunes |

87 | CleanVideoBatch Distillation: Azeotrope | The changes in temperature and composition of the vapor are plotted versus time for batch distillation of a binary liquid that has an azeotrope. | 3/14/2012 | Free | View in iTunes |

88 | CleanVideoBubble Point Iteration | Determine the bubble point pressure and the vapor composition for a binary liquid. | 2/19/2011 | Free | View in iTunes |

89 | CleanVideoChemical and Phase Equilibrium | Calculates the equilibrium composition when both liquid and vapor are present for a three-component system. | 11/28/2011 | Free | View in iTunes |

90 | CleanVideoBubble Temperature Calculation | Calculates the bubble temperature for an ideal binary liquid solution using Excel solver. | 4/23/2015 | Free | View in iTunes |

91 | CleanVideoBubble Point Calculation for Condenser | Calculates the minimum pressure a condenser can operate to completely condense a binary vapor. | 2/19/2011 | Free | View in iTunes |

92 | CleanVideoFlash Calculation: Raoult's Law | Determine the outlet compositions and the fraction of liquid and vapor when a high pressure liquid is flashed to lower pressure. The outlet temperature and pressure are given and the vapor-liquid equilibrium is modeled by Raoult's law. | 4/29/2015 | Free | View in iTunes |

93 | CleanVideoMolecular Weight of a Protein from Osmotic Pressure | Uses osmotic pressure of a protein solution to determine the protein molecular weight. | 4/29/2015 | Free | View in iTunes |

94 | CleanVideoSolve VLE Algebraic Equations (POLYMATH) | Uses POLYMATH software to solve non-linear algebraic equations that arise in vapor-liquid equilibrium calculations. | 3/15/2012 | Free | View in iTunes |

95 | CleanVideoDew Temperature Calculation | Determine the liquid composition and temperature using Excel solver, given the vapor composition and the pressure. | 3/15/2012 | Free | View in iTunes |

96 | CleanVideoBubble Temperature: Non-Ideal Liquid | Calculates the bubble temperature for a binary system where the liquid phase is modeled using the van Laar equation. | 10/17/2011 | Free | View in iTunes |

97 | CleanVideoGibbs Free Energy Change for Non-Ideal Mixture | Using vapor-liquid equilibrium data, calculate the Gibbs free energy change to form a non-ideal liquid mixture. | 2/19/2011 | Free | View in iTunes |

98 | CleanVideoBubble Pressure: Margules Equation | Determine the bubble pressure for a binary system using the one-parameter Margules equation. | 2/19/2011 | Free | View in iTunes |

99 | CleanVideoVLE Calcuations with UNIFAC | Tutorial on a spreadsheet for VLE calculations using UNIFAC. | 2/19/2011 | Free | View in iTunes |

100 | CleanVideoLiquid-Liquid Equilibrium using UNIFAC | Tutorial on using an UNIFAC spreadsheet for liquid-liquid equilibrium calculations. | 4/2/2011 | Free | View in iTunes |

101 | CleanVideoPhases for Immiscible Liquids | Presents the solutions to a conceptest for immiscible liquids. | 3/14/2012 | Free | View in iTunes |

102 | CleanVideoPartial Pressure: Immiscible Liquids | Determine the partial pressures of two species that are being condensed if the liquids are immiscible. | 5/14/2011 | Free | View in iTunes |

103 | CleanVideoVLE: Wilson's Equation (POLYMATH) | The equations used in the POLYMATH program were developed in a separate screencast entitled vapor-liquid equilibrium: Wilson's equation. | 2/17/2012 | Free | View in iTunes |

104 | CleanVideoDescription of the Reaction Coordinate | Explains the energy versus reaction coordinate diagram. Relates the activation energies for the forward and reverse reactions of an exothermic reaction to the equilibrium constant dependence on temperature. | 2/23/2012 | Free | View in iTunes |

105 | CleanVideoThe Equilibrium Constant | Explains why the equilibrium constant is dimensionless and why it is independent of pressure. | 5/4/2016 | Free | View in iTunes |

106 | CleanVideoEquilibrium Constant Introduction | Explains the equilibrium constant for an ideal gas and for a liquid. | 4/10/2012 | Free | View in iTunes |

107 | CleanVideoGas-Phase Reaction Equilibrium | Apply chemical equilibrium to a gas-phase reaction and determine the effect of temperature on equilibrium conversion. | 4/5/2012 | Free | View in iTunes |

108 | CleanVideoUnfolded Protein Equilibrium (BIO) | Use the Gibbs free energy change to determine the fraction of protein unfolded at equilibrium. | 11/23/2011 | Free | View in iTunes |

109 | CleanVideoProtein Stability (BIO) | The effect of a denaturant on the stability of a protein is determined using Gibbs free energy dependence on denaturant concentration. | 11/23/2011 | Free | View in iTunes |

110 | CleanVideoEquilibrium Protein Binding (BIO) | Use equilibrium constants to determine the enthalpy and entropy of folding two proteins. | 4/11/2011 | Free | View in iTunes |

111 | CleanVideoGas Phase Chemical Equilibrium | Determine the equilibrium conversion of a gas phase reaction with and without the presence of an inert. | 2/15/2011 | Free | View in iTunes |

112 | CleanVideoHeat Removal from a Chemical Reactor | Determines the heat removal so that a chemical reactor is isothermal. | 7/2/2014 | Free | View in iTunes |

113 | CleanVideoAdiabatic Temperature | Calculate the adiabatic temperature for a reaction when conversion is 30% using temperature-dependent heat capacities. | 2/16/2012 | Free | View in iTunes |

114 | CleanVideoDiluent Effect on Equilibrium Conversion | The effect of diluent on equilibrium conversion is analyzed for an exothermic adiabatic reaction. | 10/31/2013 | Free | View in iTunes |

115 | CleanVideoInert Effect on Equilibrium | Calculate the effect of an inert on the equilibrium conversion. | 4/2/2012 | Free | View in iTunes |

116 | CleanVideoChemical Equilibrium: Effect of an Inert | Examine how adding an inert changes the equilibrium conversion of a gas-phase reaction for both isothermal and adiabatic cases. | 3/15/2012 | Free | View in iTunes |

117 | CleanVideoGibbs Phase Rule: Reacting Systems | Explains the Gibbs phase rule when chemical reactions take place. | 2/16/2012 | Free | View in iTunes |

118 | CleanVideoHeterogeneous Chemical Equilibrium | Given the Gibbs free energy at two temperatures, determine the maximum temperature for a heterogeneous reaction to occur. | 2/15/2011 | Free | View in iTunes |

119 | CleanVideoSolid-Liquid Chemical Equilibrium | An example of heterogeneous chemical equilibrium with both liquid and solid phases. Estimate the maximum temperature at which calcium (liquid) reduces thorium dioxide (solid). | 5/20/2015 | Free | View in iTunes |

120 | CleanVideoHeat of Mixing | Calculate heat of mixing when two solutions are mixed. | 4/11/2011 | Free | View in iTunes |

121 | CleanVideoAdiabatic Mixing Temperature | Describes how to use a diagram of enthalpy versus weight percent for a binary mixture to determine the final temperature when mixing is adiabatic. | 2/23/2012 | Free | View in iTunes |

122 | CleanVideoSimpson's Rule | Use Simpson's rule in a spreadsheet to calculate the integral for a set of data. | 3/14/2012 | Free | View in iTunes |

123 | CleanVideoCOSMOtherm: Molecular Interactions Probability | Tutorial on using COSMOtherm to determine molecular interaction probability in a binary mixture. | 4/5/2012 | Free | View in iTunes |

124 | CleanVideoCOSMOtherm: Boiling Temperatures and Bubble Points | A tutorial on using Cosmotherm to determine the boiling points of a species and the bubble point of a mixture. | 3/15/2012 | Free | View in iTunes |

125 | CleanVideoCOSMOtherm: Vapor Pressures | A tutorial on using COSMOtherm to determine vapor pressures. | 3/15/2012 | Free | View in iTunes |

126 | CleanVideoCOSMOtherm: Activity Coefficients & Excess Gibbs Free Energy | A tutorial on using COSMOtherm to determine activity coefficients and use them to calculate the excess Gibbs free energy of a mixture. | 3/15/2012 | Free | View in iTunes |

127 | CleanVideoCOSMOtherm: Pxy Diagram | A tutorial on using COSMOtherm to create a Pxy diagram for a binary mixture. | 3/15/2012 | Free | View in iTunes |

128 | CleanVideoCOSMOtherm: Visualizing Molecular Interactions | A tutorial on using COSMOtherm to create visual representations of molecular interactions. | 2/19/2011 | Free | View in iTunes |

129 | CleanVideoCOSMOtherm in Windows Vista | Tutorial on using COSMOtherm with Windows Vista. | 2/19/2011 | Free | View in iTunes |

130 | CleanVideoCarnot Cycle: Reversible and Irreversible (Review) | Compares the work output from reversible and irreversible Carnot cycles. | 4/2/2012 | Free | View in iTunes |

131 | CleanVideoEntropy Change/Multiple Steps (Review) | Evaluates the entropy change for a gas undergoing multiple steps. | 4/2/2012 | Free | View in iTunes |

132 | CleanVideoExact Differential Expansion Rule (Review) | Uses the expansion rule to determine if an equation is correct. | 4/2/2012 | Free | View in iTunes |

133 | CleanVideoInternal Energy/Volume Diagram (Review) | Compares reversible and irreversible adiabatic expansion on an internal energy/volume diagram. | 4/2/2012 | Free | View in iTunes |

134 | CleanVideoSingle-Component VLE A (Review) | Describes how a single-component, two phase system changes when the volume decreases isothermally. | 4/2/2012 | Free | View in iTunes |

135 | CleanVideoHeating a Non-Ideal Gas in Two Different Systems (Review) | Compares the temperature of a fixed volume container with the temperature of a piston-cylinder when the same amount of heat is added to both. | 6/4/2012 | Free | View in iTunes |

136 | CleanVideoGibbs Pressure Dependence (Review) | Describes how Gibbs free energy changes with a change in pressure. | 6/4/2012 | Free | View in iTunes |

137 | CleanVideoReversible vs. Irreversible Compression (Review) | Compares reversible and irreversible compression for a closed system. | 6/4/2012 | Free | View in iTunes |

138 | CleanVideoWork and Efficiency in Turbines (Review) | Compares the work of two turbines with the same exit conditions but different efficiencies. | 6/4/2012 | Free | View in iTunes |

139 | CleanVideoAdiabatic Compressor (Review) | Solution to an exam problem on adiabatic compression of a gas. | 4/2/2012 | Free | View in iTunes |

140 | CleanVideoFirst Law Applied to Gas Expansion (Review) | Determines the temperature change when air leaks from a cylinder into an insulated, pressure tight room. | 6/18/2012 | Free | View in iTunes |

141 | CleanVideoIrreversible Carnot Engine (Review) | Calculates the entropy change for a Carnot cycle with a finite temperature difference between the reservoirs and the Carnot engine temperatures. | 2/18/2012 | Free | View in iTunes |

142 | CleanVideoIrreversible Process Entropy Change (Review) | Calculates the entropy change for water in an irreversible process using steam tables. | 4/2/2012 | Free | View in iTunes |

143 | CleanVideoRefrigeration Compessor Efficiency (Review) | Calculates the compressor efficiency for a refrigeration cycle. | 6/18/2012 | Free | View in iTunes |

144 | CleanVideoSteam Tables: Compressed Liquid (Review) | Describes what happens when a drum filled with water at vapor-liquid equilibrium is sealed and heated. | 6/18/2012 | Free | View in iTunes |

145 | CleanVideoBubble Pressure Plot for Binary Mixture (Review) | Plots bubble pressure versus liquid mole fraction for a binary mixture with attractive interactions between the two components. | 4/2/2012 | Free | View in iTunes |

146 | CleanVideoFugacities from Peng-Robinson EOS Spreadsheet (Review) | Determines the state of a binary system given fugacities obtained from a Peng-Robinson EOS spreadsheet. | 4/2/2012 | Free | View in iTunes |

147 | CleanVideoIsotherms on PV Diagram (Review) | Plots pressure versus volume individually for two components with different critical temperatures. | 4/2/2012 | Free | View in iTunes |

148 | CleanVideoPartial Pressure Above Immiscible Liquids (Review) | Plots partial pressure of one component versus total pressure for two immiscible liquids. | 4/2/2012 | Free | View in iTunes |

149 | CleanVideoPhase Equilibrium for Binary Mixture (Review) | Describes what happens when a component with negligible vapor pressure is added to water in vapor-liquid equilibrium. | 4/2/2012 | Free | View in iTunes |

150 | CleanVideoThree-Phase Equilibrium/Binary Mixture (Review) | Explains what happens as a solid-liquid-vapor system with two components approaches equilibrium and why. | 4/2/2012 | Free | View in iTunes |

151 | CleanVideoCompression of a VLE System (Review) | Explains how the quality of heptane changes as it is compressed isothermally. | 6/4/2012 | Free | View in iTunes |

152 | CleanVideoChemical Potential of an Evaporating Solution (Review) | Plots how the chemical potential of a NaCl solution changes with time as it is heated. | 6/5/2012 | Free | View in iTunes |

153 | CleanVideoChemical Potential from VLE (Review) | Uses Raoult's law to determine the chemical potential for one component in a binary mixture at vapor-liquid equilibrium. | 4/2/2012 | Free | View in iTunes |

154 | CleanVideoFlash Calculation: Binary Mixture (Review) | Calculates the vapor composition for a binary liquid that is flashed. | 4/2/2012 | Free | View in iTunes |

155 | CleanVideoFugacity of High-Pressure Liquid (Review) | Calculates the fugacity of liquid water at high pressure using the Poynting correction. | 4/2/2012 | Free | View in iTunes |

156 | CleanVideoVLE using Fugacity Coefficients (Review) | Use fugacity coefficients to calculate vapor-liquid equilibrium for a binary system. | 4/2/2012 | Free | View in iTunes |

157 | CleanVideoFugacity: Two Component System (Review) | Plots fugacity versus time when methane is added to a fixed volume box containing carbon dioxide. | 4/30/2012 | Free | View in iTunes |

158 | CleanVideoHelmholtz Free Energy: Ideal Liquid Solution (Review) | Plots Helmholtz free energy versus mole fraction for a binary ideal liquid solution. | 4/30/2012 | Free | View in iTunes |

159 | CleanVideoPhase Change: Critical Temperature (Review) | Evaluates the possibility of a phase change for ethane above it's critical temperature. | 4/30/2012 | Free | View in iTunes |

160 | CleanVideoTwo Component System at VLE (Review) | Describes what happens when water is added to a piston-cylinder system at vapor-liquid equilibrium. | 4/30/2012 | Free | View in iTunes |

161 | CleanVideoFugacity of an Ideal Gas (Review) | Estimates the fugacity of oxygen when air is bubbled through water at atmospheric pressure. | 4/30/2012 | Free | View in iTunes |

162 | CleanVideoTxy Diagram: Lever Rule (Review) | Determines temperature and composition when a liquid is partially evaporated using a Txy diagram. | 4/30/2012 | Free | View in iTunes |

163 | CleanVideoBinary VLE Change: Decrease Volume (Review) | Describes how a binary mixture at vapor-liquid equilibrium changes when its volume is halved. | 4/3/2012 | Free | View in iTunes |

164 | CleanVideoEnthalpy Pressure Dependence of an Ideal Gas (Review) | Uses thermodynamic equations to explain why enthalpy of an ideal gas is independent of pressure. | 4/3/2012 | Free | View in iTunes |

165 | CleanVideoEnthalpy Pressure Dependence for a Non-Ideal Gas (Review) | Given an equation of state for a non-ideal gas, determine how enthalpy changes with pressure at constant temperature. | 4/4/2012 | Free | View in iTunes |

166 | CleanVideoFirst Law and State Functions (Review) | Applies the first law to two processes between the same initial and final states. | 4/3/2012 | Free | View in iTunes |

167 | CleanVideoFirst Law/Irreversible Expansion (Review) | Applies the first law to an irreversible expansion in a piston/cylinder system. | 4/3/2012 | Free | View in iTunes |

168 | CleanVideoFugacity for Non-Ideal Solutions (Review) | Plots fugacity versus mole fraction for non-ideal mixtures. | 4/3/2012 | Free | View in iTunes |

169 | CleanVideoFugacity from Pxy Diagram (Review) | Uses a Pxy diagram to determine which component has the higher fugacity in a binary liquid mixture. | 4/3/2012 | Free | View in iTunes |

170 | CleanVideoImmiscible Liquids Phase Equilibrium (Review) | Plots partial pressures versus temperature for binary immiscible liquids. | 4/3/2012 | Free | View in iTunes |

171 | CleanVideoIntermolecular Interactions Energy Diagram (Review) | Uses a Pxy diagram to estimate relative values for energy versus intermolecular distance diagram. | 4/3/2012 | Free | View in iTunes |

172 | CleanVideoReaction in an Adiabatic Throttle (Review) | Compares the enthalpy of the feed and exit streams for a throttle in which a reaction takes place. | 4/3/2012 | Free | View in iTunes |

173 | CleanVideoSingle-Component VLE B (Review) | Compares the equilibrium pressure when 1 L liquid is added to evacuated 5 and 10 L containers. | 4/3/2012 | Free | View in iTunes |

174 | CleanVideoSolid/Liquid Phase Equilibrium (Final Review) | Uses the concept of fugacity to determine equilibrium conditions when ethanol is added to an ice/water mixture. | 4/3/2012 | Free | View in iTunes |

175 | CleanVideoChemical Equilibrium: Standard State Gibbs Free Energy (Review) | Calculate the standard state Gibbs free energy change given equilibrium data for a heterogeneous reaction. | 4/3/2012 | Free | View in iTunes |

176 | CleanVideoDeparture Entropy (Review) | Calculates the departure entropy for a real gas. | 4/3/2012 | Free | View in iTunes |

177 | CleanVideoDetermine Fugacity from EOS (Review) | Calculates the fugacity from the equation of state for a non-ideal gas. | 4/4/2012 | Free | View in iTunes |

178 | CleanVideoEquilibrium Constant from Free Energy and Heats of Formation (Review) | Calculates the equilibrium constant using the Gibbs free energy of formation and heats of formation. | 4/4/2012 | Free | View in iTunes |

179 | CleanVideoEquilibrium Constant from VLE Data (Review) | Calculates the equilibrium constant for a liquid-phase reaction when vapor-liquid equilibrium is also present. | 4/4/2012 | Free | View in iTunes |

180 | CleanVideoMinimum Work for an Adiabatic Compressor (Review) | Determines the minimum work needed to compress steam. | 4/4/2012 | Free | View in iTunes |

181 | CleanVideoVLE/Margules Equation for Non-Ideal Liquids (Review) | Uses the single-component Margules equation to determine the composition of a vapor in equilibrium with a binary, non-ideal liquid. | 4/4/2012 | Free | View in iTunes |

182 | CleanVideoVLE for Partially Immiscible Liquids (Review) | Describes the phase changes when partially immiscible liquids are heated in a closed system. | 5/10/2012 | Free | View in iTunes |

183 | CleanVideoAdd Component to Binary VLE Mixture | Explains how liquid and vapor compositions do not change when one component is added to a binary vapor-liquid equilibrium mixture. | 10/17/2011 | Free | View in iTunes |

184 | CleanVideoVapor-Liquid-Liquid Equilibrium | Describes the behavior of a binary system that is cooled. The two components are only partially immiscible in the liquid phase. | 2/19/2011 | Free | View in iTunes |

185 | CleanVideoSolver in Excel | Describes how to use the solver function in Excel 2010. | 7/24/2012 | Free | View in iTunes |

186 | CleanVideoVLE Calculations with Margules Equation | Uses VLE data at one liquid composition for a binary mixture and the two-parameter Margules model for activity coefficients to calculate VLE at another liquid composition. | 8/13/2012 | Free | View in iTunes |

187 | CleanVideoSecond Law - Hilsch Tube | An example to determine if a proposed process in which room temperature air is split into hot and cold air is possible. | 9/4/2012 | Free | View in iTunes |

188 | CleanVideoAcceleration of an Airplane by a Turbojet Engine | Calculates the initial acceleration of an airplane powered by a turbojet engine starting from rest and then applying full power. | 1/10/2013 | Free | View in iTunes |

189 | CleanVideoBoiling Point Elevation/Raoult's Law | Describes using Raoult's law why the boiling point increases when a non-volatile solute is added to a liquid. | 1/14/2013 | Free | View in iTunes |

190 | CleanVideoCalculate Freezing Point Depression | Calculates the freezing point depression when glucose is added to water. | 2/13/2013 | Free | View in iTunes |

191 | CleanVideoFreezing Point Depression Derivation | Derives the equations necessary to calculate the freezing point depression when a solute is added to a solvent. | 2/13/2013 | Free | View in iTunes |

192 | CleanVideoAdiabatic Compressor: Non-Ideal Gas | Uses the Peng-Robinson equation of state to calculate the exit temperature from an adiabatic compressor. The EOS spreadsheet that is used can be found on www.chethermo.net/software. | 2/13/2013 | Free | View in iTunes |

193 | CleanVideoHeat Removal to Condense a Vapor Mixture | Describes the steps to condense a binary vapor mixture at its dew point to a liquid at its bubble point using the concept of state functions. | 2/13/2013 | Free | View in iTunes |

194 | CleanVideoAdiabatic Flame Temperature | Calculates the adiabatic flame temperature when butane burns in pure oxygen. | 2/13/2013 | Free | View in iTunes |

195 | CleanVideoJoule-Thomson Expansion | Describes the Joule-Thomson coefficient and calculates how much liquid forms when a high-pressure gas undergoes a J-T expansion. Peng-Robinson equation of sheet spreadsheet can be found on www.chethermo.net/software. | 2/20/2013 | Free | View in iTunes |

196 | CleanVideoSteam Tables: Calculating Quality | Calculates the quality of a two-phase water mixture in vapor-liquid equilibrium using steam tables. | 3/6/2013 | Free | View in iTunes |

197 | CleanVideoAdvanced Interpolation | Performs interpolation multiple times to calculate specific volume given pressure and temperature. | 3/13/2013 | Free | View in iTunes |

198 | CleanVideoLinear Interpolation | Calculates saturated pressure by linear interpolation using information from the steam tables. | 3/13/2013 | Free | View in iTunes |

199 | CleanVideoVLE in a Constant Volume System | Conceptual question in which air is added to a constant-volume, isothermal container. | 3/13/2013 | Free | View in iTunes |

200 | CleanVideoExpansion in a Piston-Cylinder | Examines the expansion of water in a piston-cylinder device when heat is added to the system. | 4/3/2013 | Free | View in iTunes |

201 | CleanVideoVLE in a Constant-Pressure System | Conceptual question in which air is added to a constant-pressure, isothermal container. | 4/3/2013 | Free | View in iTunes |

202 | CleanVideoWhat is Chemical Potential? (Single Component Systems) | Explains chemical potential for a single component system and discusses its dependence on temperature, pressure, and phase. | 4/10/2013 | Free | View in iTunes |

203 | CleanVideoWhat is Chemical Potential? (Multi-Component Systems) | Explains chemical potential for a multi-component system and discusses movement between phases and chemical reactions. | 4/10/2013 | Free | View in iTunes |

204 | CleanVideoEnergy Balance Around a Turbine | Performs an energy balance around a turbine accounting for flow work and shows how flow work can be lumped into the enthalpy term. | 4/10/2013 | Free | View in iTunes |

205 | CleanVideoFlow Work | Introduces the concept of flow work and derives the equations governing it. | 4/10/2013 | Free | View in iTunes |

206 | CleanVideoOtto Cycle: Gas Engine Power Output | Calculates the power output of a gasoline engine. | 5/23/2013 | Free | View in iTunes |

207 | CleanVideovan der Waals Equation of State | Explains the terms in the van der Waals equation of state and the reason for the terms and present plots of reduced pressure versus reduced volume. | 6/18/2013 | Free | View in iTunes |

208 | CleanVideoGas Phase Equilibrium Conversion: Part 1 | The equilibrium conversion for a gas phase reaction at 80C is calculated by first calculating the equilibrium constant at 25C from the Gibbs free energy of formation, and then calculating the equilibrium constant at 80C using the vant Hoff equation. | 8/28/2013 | Free | View in iTunes |

209 | CleanVideoGas Phase Equilibrium Conversion: Part 2 | The equilibrium conversion for a gas phase reaction at 80C is calculated using the equilibrium constant determined in part 1. | 8/28/2013 | Free | View in iTunes |

210 | CleanVideoHeat of Reaction (from Heats of Formation) | Determine the heat of reaction at a higher temperature from the heat of reaction at 25 °C. | 8/28/2013 | Free | View in iTunes |

211 | CleanVideoInternal Energy Introduction | Introduces and discusses internal energy and moving boundary work on a system. | 10/3/2013 | Free | View in iTunes |

212 | CleanVideoEvaporative Cooling Energy Balance | Apply energy balance to liquid water that is evaporating and undergoing evaporative cooling. | 10/16/2013 | Free | View in iTunes |

213 | CleanVideoVapor-Liquid Equilibrium Using the Wilson Equation | Model vapor-liquid equilibrium for a binary mixture using Wilson's equation to determine the activity coefficients for the liquid phase. | 3/7/2014 | Free | View in iTunes |

214 | CleanVideoWhat is Evaporative Cooling? | Explains the phenomena of evaporative cooling. | 4/16/2014 | Free | View in iTunes |

215 | CleanVideoCompressor Efficiency | Calculate the efficiency of a compressor that uses an ideal gas. | 4/16/2014 | Free | View in iTunes |

216 | CleanVideoAdiabatic Expansion of Steam | Uses steam tables to determine the work done by the adiabatic expansion of steam. | 4/25/2014 | Free | View in iTunes |

217 | CleanVideoSteam Tables: Constant Volume Process | Uses the steam tables to determine the final conditions when water at high temperature is cooled at constant volume. | 5/2/2014 | Free | View in iTunes |

218 | CleanVideoWater Properties from Steam Tables | Uses steam tables to determine properties of water. | 5/2/2014 | Free | View in iTunes |

219 | CleanVideoSolving a Steam Turbine Problem | Explains the steps to determine work and outlet conditions for an irreversible steam turbine. | 5/22/2014 | Free | View in iTunes |

220 | CleanVideoChemical Equilibrium and LeChatelier's Principle | Uses an interactive Mathematica simulation to demonstrate the behavior for gas-phase equilibrium for ammmonia formation from nitrogen and hydrogen. Demonstrates the behavior as change temperature or pressure or as add H2, H2, or NH3. Simulation available at: http://demonstrations.wolfram.com/ChemicalEquilibriumInTheHaberProcess/ | 6/2/2014 | Free | View in iTunes |

221 | CleanVideoLeChatelier's Principle Does Not Always Work | Presents an example where LeChatelier's principle predicts the wrong direction for the equilibrium shift. The number of moles at equilibrium are calculated using an interactive Mathematica simulation, which is available at: http://demonstrations.wolfram.com/ChemicalEquilibriumInTheHaberProcess/ | 6/2/2014 | Free | View in iTunes |

222 | CleanVideoPxy Diagram (Simulation) | Uses an interactive Mathematica simulation to describe a pressure-mole fraction diagram (P-x-y) that is generated with Raoult's law. Behavior is discussed where the pressure is changed at constant overall composition and where the overall composition is changed at constant pressure. This simulation is available at: http://demonstrations.wolfram.com/LeverRuleAppliedToTheBenzeneTolueneVaporPressureDiagram/ | 7/2/2014 | Free | View in iTunes |

223 | CleanVideoAdiabatic Compression of an Ideal Gas | Calculates the adiabatic temperature for compression of an ideal gas, both reversibly and irreversibly. | 7/2/2014 | Free | View in iTunes |

224 | CleanVideoSolid-Liquid Phase Diagram | Describes the phases present on a temperature versus mole fraction diagram for the titanium-uranium system using an interactive Mathematica simulation. This simulation is available at: http://demonstrations.wolfram.com/LeverRuleForTheUraniumTitaniumSolidLiquidPhaseDiagram/ | 7/2/2014 | Free | View in iTunes |

225 | CleanVideoMinimum Work to Cool a Liquid | Determines the minimum work required to cool water given a constant temperature heat sink. | 7/2/2014 | Free | View in iTunes |

226 | CleanVideoState Functions and Maxwell Relations | Uses a general form of an exact differential to relate state functions to Maxwell relationships. | 8/6/2014 | Free | View in iTunes |

227 | CleanVideoVLLE for Immiscible Liquids | A Txy diagram is used to explain phases present for vapor-liquid-liquid equilibrium for 2 immiscible species. | 8/6/2014 | Free | View in iTunes |

228 | CleanVideoIntrodution to Steam Tables | Steam tables used to solve two example problems: 1) density at critical point, 2), quality of liquid-vapor mixture. | 8/22/2014 | Free | View in iTunes |

229 | CleanVideoIntroduction to Steam Tables 2 | Steam tables are used to solve two example problems: 1) throttle liquid water from high pressure, 2) heat liquid-vapor mixture at constant volume. | 8/13/2014 | Free | View in iTunes |

230 | CleanVideoCompare Steam Tables to Ideal Gas Law | Calculates the volume of a gas using the ideal gas law and compares to the volume at the same conditions from the steam tables. | 8/13/2014 | Free | View in iTunes |

231 | CleanVideoWhat is Enthalpy? | Presents the definition of enthalpy, its differential, and its use in energy balances. | 9/3/2014 | Free | View in iTunes |

232 | CleanVideoIsothermal Compression of a Non-Ideal Gas | Solves Peng-Robinson equation of state for compression of a non-ideal gas. | 9/25/2014 | Free | View in iTunes |

233 | CleanVideoIsothermal Compression of a Non-Ideal Gas (Spreadsheet) | Uses equation of state spreadsheet to solve isothermal compression-part 2. See "Isothermal Compression of a Non-Ideal Gas." Spreadsheet can be downloaded from www.chethermo.net/software. | 9/25/2014 | Free | View in iTunes |

234 | CleanVideoTxy Phase Diagrams for VLLE Tutorial | Uses an interactive simulation to demonstrate equilibrium phases for a binary system on a T-x-y diagram where the two components are only partially miscible in the liquid phase. The interactive simulation is available on the Wolfram Demonstration Project website. | 10/2/2014 | Free | View in iTunes |

235 | CleanVideoCalculate VLE Using an EOS | Describes how to use an equation of state to calculate fugacity coefficients in both liquid and vapor phases to determine VLE compositions and conditions. | 11/10/2014 | Free | View in iTunes |

236 | CleanVideoCircumnavigate the Critical Point (Simulation) | Demonstrate on a pressure-temperature diagram a transition from a liquid phase to a vapor phase without observing a phase change by going around the critical point. An interactive Mathematica simulation is used to demonstrate the behavior. | 11/17/2014 | Free | View in iTunes |

237 | CleanVideoPhase Behavior on a Pressure-Volume Diagram (Interactive Simulation) | Describes how to use the interactive simulation that represents the pressure-volume behavior for water. The simulation is located at http://demonstrations.wolfram.com/PhaseBehaviorOnAPressureVolumeDiagram/. | 1/28/2015 | Free | View in iTunes |

238 | CleanVideoThrottle High-Pressure Water (Interactive Simulation) | Describes how to use the interactive simulation for throttling high-pressure water. This simulation is located at: http://demonstrations.wolfram.com/ThrottlingHighPressureWater/. | 1/28/2015 | Free | View in iTunes |

239 | CleanVideoExcess Gibbs Free Energy | Determine the excess Gibbs free energy for a binary mixture from vapor-liquid equilibrium data. | 1/28/2015 | Free | View in iTunes |

240 | CleanVideoAdd a Component to a Vapor-Liquid Mixture (Interactive Simulation) | Describes an interactive simulation that demonstrates the behavior with one component is in vapor-liquid equilibrium in a piston-cylinder and a second component is added at constant pressure and temperature. The simulation is located at: http://demonstrations.wolfram.com/AddingAComponentToAVaporLiquidMixture/. | 1/28/2015 | Free | View in iTunes |

241 | CleanVideoRankine Cycle (Interactive Simulation) | Describes an interactive simulation that demonstrates the Rankine cycle, which generates work by feeding superheated steam at high pressure to a turbine. This simulation is located at: http://demonstrations.wolfram.com/RankineCycle/. | 1/28/2015 | Free | View in iTunes |

242 | CleanVideoCarnot Cycle with Irreversible Heat Transfer (Interactive Simulation) | Describes an interactive simulation that demonstrates a Carnot cycles (heat engine and heat pump) in which there are finite temperature differences between the reservoir temperatures and the temperatures in the cycle. The simulation is located at: http://demonstrations.wolfram.com/CarnotCyclesWithIrreversibleHeatTransfer/ | 1/28/2015 | Free | View in iTunes |

243 | CleanVideoSolid-Solid-Liquid Phase Diagram (Interactive Simulation) | Describes an interactive simulation that shows the phase diagram (temperature versus mole fraction) for two solids that form a solid compound. Heat can be added to show how phases change with temperature and liquid forms. The simulation is located at: http://demonstrations.wolfram.com/SolidSolidLiquidEquilibrium/. | 1/28/2015 | Free | View in iTunes |

244 | CleanVideoEnthalpy Change with Pressure for Ideal Gas at Constant Entropy (Review) | Uses thermodynamic equations to explain how enthalpy of an ideal gas changes with pressure at constant entropy. | 2/4/2015 | Free | View in iTunes |

245 | CleanVideoVapor-Compression Refrigeration Cycle (Interactive Simulation) | Describes how to use an interactive simulation that demonstrates a refrigeration cycle on a temperature-entropy diagram and a pressure-enthalpy diagram. This simulation is located at: http://demonstrations.wolfram.com/OrdinaryVaporCompressionOVCCycleForRefrigerantR134a/. | 2/4/2015 | Free | View in iTunes |

246 | CleanVideoMass Balance for Binary VLE (Interactive Simulation) | Describes an interactive simulation that demonstrates visually how one component can be added to a binary mixture in vapor-liquid equilibrium so that the mole fractions of the vapor and liquid do not change. This simulation is located at: http://demonstrations.wolfram.com/MassBalancesForBinaryVaporLiquidEquilibriumVLE/. | 2/4/2015 | Free | View in iTunes |

247 | CleanVideoMass Balance Calculations for Binary VLE | Mass balance calculations are presented that show how one component can be added to a binary vapor-liquid mixture in equilibrium so that the mole fractions of the two phases do not change. These calculations are done for the system shown in the interactive simulation located at: http://demonstrations.wolfram.com/MassBalancesForBinaryVaporLiquidEquilibriumVLE/ | 4/23/2015 | Free | View in iTunes |

248 | CleanVideoSaturation Pressure from EOS Spreadsheet | Determines the saturation pressure of a single component using the Peng-Robinson equation of state spreadsheet. The spreadsheet can be downloaded from http://www.chethermo.net/software. | 2/4/2015 | Free | View in iTunes |

249 | CleanVideoEntropy Change with Temperature (Review) | Calculates the entropy change for an ideal gas and the reservoir that is used to heat the gas. | 2/4/2015 | Free | View in iTunes |

250 | CleanVideoAzeotrope in Binary System (Review) | Uses equilibrium data at one composition for a binary mixture to determine if the system has an azeotrope. | 2/4/2015 | Free | View in iTunes |

251 | CleanVideoEnthalpy Dependece on Pressure | Discusses how enthalpy changes as pressure increases for an ideal gas, a real gas, and a liquid. | 2/11/2015 | Free | View in iTunes |

252 | CleanVideoThrottle Energy Balance: Real Gas | Energy balance for a real gas flowing through a throttle. Spreadsheet is available at http://www.chethermo.net/software. | 2/11/2015 | Free | View in iTunes |

253 | CleanVideoAdiabatic Reactor Temperature | Calculates the adiabatic reactor temperature for a reversible reaction. | 2/11/2015 | Free | View in iTunes |

254 | CleanVideoBubble Temperature (Raoult's Law) | Calculate the bubble temperature for a binary system that obeys Raoult's Law, using POLYMATH to solve the non-linear equations. | 2/11/2015 | Free | View in iTunes |

255 | CleanVideoFugacities in a Soda Can (Interactive Simulation) | Describes an interactive simulation that shows how the fugacities of CO2 and H2O change as the temperature changes. The fugacities and the concentrations in each phase are compared. The simulation is located at: http://demonstrations.wolfram.com/FugacitiesInACanOfSoda/ | 2/18/2015 | Free | View in iTunes |

256 | CleanVideoP-x-y and T-x-y Diagrams for VLE (Interactive Simulation) | Describes an interactive simulation that explains P-x-y and T-x-y diagrams for vapor-liquid equilibrium (VLE) for a binary system that obeys Raoult's law. The simulation is located at: http://demonstrations.wolfram.com/PxyAndTxyDiagramsForVaporLiquidEquilibriumVLE/ | 2/18/2015 | Free | View in iTunes |

257 | CleanVideoSingle-Component P-V and T-V Diagrams (Interactive Simulation) | Describes an interactive simulation that shows isotherms on a P-V plot and isobars on a T-V plot for the van der Waals cubic equation of state. The simulation is located at: http://demonstrations.wolfram.com/SingleComponentPVAndTVDiagrams/ | 2/18/2015 | Free | View in iTunes |

258 | CleanVideoAdiabatic Compression/Expansion: Enthalpy-Entropy Diagram | Shows reversible and irreversible processes on a enthalpy-entropy diagram, and discusses the work for the two types of processes. | 2/18/2015 | Free | View in iTunes |

259 | CleanVideoBubble Temperature: Raoult's Law (POLYMATH Solution) | Shows how to use the Polymath program to solve nonlinear algebraic equations to calculate the bubble point for a binary system that is modeled by Raoult's law. A separate screencast (Bubble temperature: Raoult's law) describes the equations that are used in this Polymath program. | 2/26/2015 | Free | View in iTunes |

260 | CleanVideoUnsteady-State Energy Balance (Filling a Tank Containing N2) | Mass and energy balances are used to determine the final temperature in a tank, which initially contains N2 at low pressure, when a value is opened to flowing N2 at higher pressure. | 2/26/2015 | Free | View in iTunes |

261 | CleanVideoFugacity from Equation of State (Interactive Simulation) | Describes an interactive simulation that calculates the fugacity for water using the Peng-Robinson equation of state. The simulation is located at: http://demonstrations.wolfram.com/FugacityFromEquationOfStateForWater/ | 2/26/2015 | Free | View in iTunes |

262 | CleanVideoVLE for Non-Ideal Mixture (Interactive Simulation) | Describes an interactive simulation that shows P-x-y and T-x-y diagrams for vapor-liquid mixture that is sufficiently non-ideal that the mixture exhibits a maximum pressure azeotrope. The simulation is located at: http://demonstrations.wolfram.com/VaporLiquidEquilibriumDiagramForNonIdealMixture/ | 2/26/2015 | Free | View in iTunes |

263 | CleanVideoEnergy Balance on a Throttling Fluid | Uses the Peng-Robinson equation of state to determine the exit temperature for ethane fed to a throttle at high pressure. The spreadsheet from the Elliott and Lira textbook was used to calculate the enthalpies in the energy balance. | 2/26/2015 | Free | View in iTunes |

264 | CleanVideoPartial Molar Enthalpy (Interactive Simulation) | Describes an interactive simulation that shows graphically the partial molar enthalpy can be obtained from a plot of enthalpy of a mixture versus mole fraction. This simulation is located at: http://demonstrations.wolfram.com/PartialMolarEnthalpy/ | 2/26/2015 | Free | View in iTunes |

265 | CleanVideoEnergy Balance: Steam Tables | Solves a constant pressure, closed system energy balance using steam tables. | 2/26/2015 | Free | View in iTunes |

266 | CleanVideoInert Effect on Chemical Equilibrium | Discusses the effect of adding an inert gas at constant temperature to a chemical reaction at equilibrium at either constant pressure or constant volume. | 3/19/2015 | Free | View in iTunes |

267 | CleanVideoAdd a Component to a VLE Mixture (Interactive Simulation) | Describes how to use an interactive simulation where one component is added to an ideal binary vapor-liquid mixture in equilibrium. The simulation is located at: http://demonstrations.wolfram.com/AddingOneComponentToAVaporLiquidEquilibriumVLEMixture/ | 4/13/2015 | Free | View in iTunes |

268 | CleanVideoSRK Equation of State Example | Calculate the pressure for a tank containing propane using the Soave-Redlich-Kwong equation of state, given the mass of propane, the tank volume, and the temperature. | 4/13/2015 | Free | View in iTunes |

269 | CleanVideoHeterogenous Chemical Equilibrium (Interactive Simulation) | Describes how to use an interactive simulation that models chemical equilibrium in which solid CaCO3 decomposes to solid CaO and gaseous CaO. The reaction takes place in a constant volume reactor. The simulation is located at: http://demonstrations.wolfram.com/HeterogeneousChemicalEquilibriumWithCalciumCarbonate/ | 4/13/2015 | Free | View in iTunes |

270 | CleanVideoNon-Ideal VLE Modeled by the Margules Equation (Interactive Simulation) | Describes how to use an interactive simulation that shows P-x-y and T-x-y diagrams for non-ideal vapor-liquid equilibrium. The activity coefficients are calculated using the Margules equation, and the parameters in the equation can be changed. The simulation is located at: http://demonstrations.wolfram.com/NonIdealVaporLiquidEquilibriumVLEModeledByTheMargulesEquatio/ | 4/13/2015 | Free | View in iTunes |

271 | CleanVideoImmiscible Liquids on T-x-y Diagram (Interactive Simulation) | Describes how to use an interactive simulation that plots temperature versus mole fraction for the phase behavior of two immiscible liquids. The simulation is located at: http://demonstrations.wolfram.com/ImmiscibleLiquidsOnTemperatureCompositionDiagram/ | 4/23/2015 | Free | View in iTunes |

272 | CleanVideoCalculate Fugacity from Equation of State | Uses the Peng-Robinson equation of state spreadsheet to calculate the fugacity of carbon dioxide given the temperature and the molar volume. Spreadsheet can be downloaded from http://www.chethermo.net/software. | 4/29/2015 | Free | View in iTunes |

273 | CleanVideoAdding One Component to a Binary VLE Mixture (Interactive Simulation) | Describes how to use an interactive simulation in which one component is added to an ideal binary mixture that is in VLE and the system is allowed to go to equilibrium at constant temperature and pressure. The simulation is located at: http://demonstrations.wolfram.com/AddingOneComponentToABinaryVaporLiquidEquilibriumVLEMixture/ | 4/29/2015 | Free | View in iTunes |

274 | CleanVideoAdd a Component to a Mixture with an Azeotrope (Interactive Simulation) | Describes how to use an interactive simulation where one component is added to a binary vapor-liquid mixture in equilibrium. The mixtures exhibits an azeotrope and the simulation shows the final equilibrium condition after the one component is added. The simulation is located at: http://demonstrations.wolfram.com/AddAComponentToAMixtureWithAnAzeotrope/ | 4/29/2015 | Free | View in iTunes |

275 | CleanVideoEnergy Balance on a Human | Applies the first law to a human and calculates the temperature increase if the body is modeled as a closed system and the water loss if modeled as an open system. | 4/29/2015 | Free | View in iTunes |

276 | CleanVideoReversible Reaction in an Adiabatic PFR (Interactive Simulation) | Describes how to use an interactive simulation in which a reversible reaction takes place in an adiabatic plug flow reactor. The equilibrium conversion is calculated for either an exothermic or endothermic reaction. The feed temperature and the amount of inert in the feed can be changed. The simulation is located at: http://demonstrations.wolfram.com/ReversibleReactionInAnAdiabaticPlugFlowReactor/ | 4/29/2015 | Free | View in iTunes |

277 | CleanVideoAdiabatic Flash of Binary Mixture | Sets up the mass and energy balances and vapor-liquid equilibrium equations to solve the outlet conditions for adiabatic flash of an ideal liquid feed. The numerical solution of the nonlinear algebraic equations are presented in separate screencasts. One screencast uses an Excel spreadsheet and the other uses Polymath. | 4/29/2015 | Free | View in iTunes |

278 | CleanVideoAdiabatic Flash of Binary Mixture (Spreadsheet Solution) | Presents the Excel spreadsheet solution to the nonlinear algebraic equations that model adiabatic flash of an ideal binary mixture. The spreadsheet uses Solver to calculate the outlet temperature and compositions and the amounts of liquid and vapor. The solution that is used in the Excel program was developed in a separate screencast. | 4/29/2015 | Free | View in iTunes |

279 | CleanVideoAdiabatic Flash of Binary Liquid (POLYMATH Solution) | Presents the Polymath solution to the nonlinear algebraic equations that model adiabatic flash of an ideal binary mixture. The program calculates the outlet temperature and compositions and the amounts of liquid and vapor. The solution that is used in the Polymath program was developed in a separate screencast. | 4/29/2015 | Free | View in iTunes |

280 | CleanVideoWhat is an Activity Coefficient? | Explains what an activity coefficient is for components in non-ideal liquid solutions. | 5/20/2015 | Free | View in iTunes |

281 | CleanVideoEnergy Balance on a Liquid Pump | Derives the equation to calculate the pump work required to increase the pressure of a liquid. | 5/20/2015 | Free | View in iTunes |

282 | CleanVideoQuality of Steam: Mass and Volume Fractions | Demonstrates the difference between mass and volume fractions, as a function of quality, for vapor-liquid equilibrium of water. | 5/20/2015 | Free | View in iTunes |

283 | CleanVideoChemical Equilibrium in the Haber Process (Interactive Simulation) | Describes how to use an interactive simulation that calculates chemical equilibrium for the gas-phase reaction of H2 and N2 to NH3. The temperature and pressure can be changed, and more moles of each component can be added to the system. The simulation is located at: http://demonstrations.wolfram.com/ChemicalEquilibriumInTheHaberProcess/ | 6/3/2015 | Free | View in iTunes |

284 | CleanVideoAdding a Second Component to a Single-Component VLE Mixture (Interactive Simulation) | Describes how to use an interactive simulation in which a piston-cylinder starts with a single-component in vapor-liquid equilibrium and a second component is added at constant pressure and temperature. The simulation is located at: http://demonstrations.wolfram.com/AddingASecondComponentToASingleComponentVaporLiquidEquilibri/ | 6/3/2015 | Free | View in iTunes |

285 | CleanVideoFugacity as a Driving Force for Mass Transfer (Interactive Simulation) | Describes how to use an interactive simulation in which two flasks at different temperatures, one containing water and the other containing water and salt, go to equilibrium. The simulation is located at: http://demonstrations.wolfram.com/FugacityAsADrivingForceForMassTransfer/ | 6/3/2015 | Free | View in iTunes |

286 | CleanVideoEnergy Balance on Filling a Tank (Interactive Simulation) | Describes how to use an interactive simulation in which a feed gas is used to pressurize an adiabatic tank that initially contains either N2 or a vapor-liquid mixture of water. The simulation solves the unsteady state energy balance. The simulation is located at: http://demonstrations.wolfram.com/EnergyBalanceOnPressurizingATank/ | 6/3/2015 | Free | View in iTunes |

287 | CleanVideoImmiscible Liquids P-x-y Diagram (Interactive Simulation) | Describes how to use an interactive simulation that shows phase equilibrium in a pressure versus composition diagram for two liquids that are immiscible. The simulation is located at: http://demonstrations.wolfram.com/ImmiscibleLiquidsOnPressureCompositionDiagram/ | 6/17/2015 | Free | View in iTunes |

288 | CleanVideoEnthalpy and Entropy Departure Functions (Interactive Simulation) | Describes how to use an interactive simulation that uses the Peng-Robinson equation of state and heat capacities to calculate enthalpy and entropy of real gases and their departure functions. The simulation is located at: http://demonstrations.wolfram.com/EnthalpyAndEntropyDepartureFunctionsForGases/ | 6/17/2015 | Free | View in iTunes |

289 | CleanVideoThree Intermolecular Potential Models (Interactive Simulation) | Describes how to use an interactive simulation that shows intermolecular potentials versus distance for two molecules (A and B) and a potential for their interaction (A-B). The simulation is located at: http://demonstrations.wolfram.com/ThreeIntermolecularPotentialModels/ | 6/17/2015 | Free | View in iTunes |

290 | CleanVideoPartially Miscible Liquids (Interactive Simulation) | Describes how to use an interactive simulation that plots temperature versus mole fraction for binary liquids that are partially miscible over a temperature range. The simulation is located at: http://demonstrations.wolfram.com/PartiallyMiscibleLiquids/ | 6/17/2015 | Free | View in iTunes |

291 | CleanVideoFugacity Temperature Dependence: Single Component | Describes how the Gibbs free energy, its departure function, and fugacity change with temperature for a single component. | 6/17/2015 | Free | View in iTunes |

292 | CleanVideoDetermine Pressure using Peng-Robinson EOS Spreadsheet | Calculates the pressure, given the temperature, number of kg of propane, and volume of tank using the Peng-Robinson equation of state spreadsheet. The spreadsheet is available at: http://sourceforge.net/projects/chethermo/ | 6/17/2015 | Free | View in iTunes |

293 | CleanVideoFugacity Temperature Dependence: Binary Mixture | Describes how the fugacities of each component in a binary mixture liquid change as the temperature increases until all the liquid vaporizes. The T-x-y diagram used in this screencast is located at http://demonstrations.wolfram.com/PxyAndTxyDiagramsForVaporLiquidEquilibriumVLE/ | 6/17/2015 | Free | View in iTunes |

294 | CleanVideoProblem Solving Approach | Problem solving approach to solve closed system energy balance. | 6/24/2015 | Free | View in iTunes |

295 | CleanVideoHeat Capacity Pressure Dependence | Calculate how the heat capacity of the gas depends on pressure. | 11/11/2015 | Free | View in iTunes |

296 | CleanVideoEnergy Balance on a Heat Exchanger | An energy balance is done on a steady-state heat exchanger in which superheated steam is used to heat a reaction stream. Steam tables are used to determine the values in the energy balance. | 7/22/2015 | Free | View in iTunes |

297 | CleanVideoThe Standard State in Chemical Equilibrium | Demonstrates that changing the standard state from a gas to a liquid for water in the water gas shift reaction changes the equilibrium constant but not the equilibrium composition. | 11/11/2015 | Free | View in iTunes |

298 | CleanVideoEntropy Change for Ideal Gas Expansion | Calculates the entropy change for the irreversible, adiabatic expansion of an ideal gas into a vacuum. | 11/11/2015 | Free | View in iTunes |

299 | CleanVideoCalculate Fugacities of Mixtures using an EOS Spreadsheet | Demonstrates how to use a spreadsheet for the Peng-Robinson equation of state for mixtures to determine fugacities and fugacity coefficients. Spreadsheet can be downloaded from http://www.chethermo.net/software. | 11/11/2015 | Free | View in iTunes |

300 | CleanVideoCalculate VLE Using an EOS Spreadsheet | Demonstrates how to use a spreadsheet for the Peng-Robinson equation of state for mixtures to determine vapor-liquid equilibrium. The example calculates the bubble point pressure and vapor compositions given temperature and liquid compositions. Spreadsheet can be downloaded from http://www.chethermo.net/software. | 11/11/2015 | Free | View in iTunes |

301 | CleanVideoOsmotic Pressure Derivation | Explanation of osmotic pressure. | 11/11/2015 | Free | View in iTunes |

302 | CleanVideoEntropy Change for Irreversible Pathway (Review) | Calculates the entropy change for an irreversible pathway. | 11/11/2015 | Free | View in iTunes |

303 | CleanVideoCalculate Work for Reversible and Irreversible Expansion/Compression | Shows graphical on a pressure-volume diagram the areas that are proportional to work for reversible and irreversible expansions and compressions of a gas in a piston/cylinder. | 3/30/2016 | Free | View in iTunes |

303 Items |

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