Thermodynamics II Interactive Simulations
Our interactive Mathematica simulations can be viewed using Opera and Mozilla Firefox browsers with the free Wolfram CDF plug-in. They can be downloaded and used offline with the Wolfram CDF plug-in. They are also available on the Wolfram Demonstration Project website. Most simulations have accompanying screencasts showing how to use them. Please contact us at if you identify problems with any of the simulations or if you have suggestions for simulations we might prepare.

Multi-Component VLE for Ideal Solutions

P-x-y and T-x-y Diagrams for
Vapor-Liquid Equilibrium

T-x-y and x-y Diagrams for
Binary VLE in Flash Drum

Adding One Component to a
Binary VLE Mixture

Adding a Second Component to a
Single-Component VLE Mixture

Adding a Second Component to a Fixed-Volume Container

Adiabatic Flash Drum with
Binary Liquid Feed

Osmotic Pressure
Prepared by S. M. Binder

Mass Balances for Binary Vapor-Liquid Equilibrium (VLE)

Lever Rule Applied to the Benzene-Toluene Vapor Pressure Diagram

Prepared by Lisa M. Goss

Gibbs Phase Rule for One- and
Two-Component Systems

Prepared by S. M. Binder

Multi-Component VLE for Non-Ideal Solutions

Partial Molar Enthalpy

Three Intermolecular Potential Models

Vapor-Liquid Equilibrium Diagram
for Non-Ideal Mixture

Non-Ideal VLE Modeled by
the Margules Equation

Basic Ternary Phase Diagram

Add a Component to a Mixture
with an Azeotrope

Henry's Law for Gases
Dissolved in Water

Heating Water and Air in a
Sealed Container

DePriester Chart for Hydrocarbons


Fugacities in an Ideal Binary Mixture

Fugacities in a Can of Soda

Partially Miscible and Immiscible Solutions

Vapor-Liquid-Liquid Equilibrium (VLLE)

Partially Miscible Liquids

Immiscible Liquids on Pressure-Composition Diagram

Temperature Composition Diagram for Immiscible Liquids

Solid-Solid-Liquid Equilibrium

Ternary Phase Diagram with Phase Envelope

Ternary Phase Diagram with
Alternate Phase Envelope

Lever Rule for the Uranium-Titanium Solid-Liquid Phase Diagram

Prepared by Lisa M. Goss

Right and Equilateral Triangle
Ternary Phase Diagrams

Reaction Equilibrium

Chemical Equilibrium in the
Haber Process

Heterogeneous Chemical Equilibrium

Reversible Reaction in an
Adiabatic Plug Flow Reactor

Gas-Phase Chemical Equilibrium at Constant Pressure or Constant Volume