Thermodynamics I Interactive Simulations
Simulations whose names are in blue will play in most browsers, but most were programmed in Mathematica, and the CDF versions, which can be downloaded, are significantly faster and can be used offline with the Wolfram CDF plug-inThe QUIZ simulations follow a step-by-step procedure that requires user input.  Most simulations are also available at Wolfram Demonstration Project. Contact us at with questions or suggestions.

Energy Balances and Entropy

Temperature Changes in
an Ideal Gas

Reversible and Irreversible Expansion or Compression Work

PhET Simulation: Gas Properties
PhET Interactive Simulations
University of Colorado Boulder

Identify Reversible and Irreversible Expansion and Compression Processes

Adiabatic Compression of Pure Gases

Prepared by H. Binous, N. A. Al-Baghli,
and B. G. Higgins

Compare Compressors or Turbines with Different Efficiencies

Adiabatic Flame Temperature

Material and Energy Balances in a Reactor with Heat Exchange

Compressible Flow through a Nozzle/Diffuser

Joule-Thomson Expansion

Throttling High-Pressure Water

Adiabatic Gas Expansion between Two Tanks

Energy Balance on Pressurizing a Tank

Evaporative Cooling of Water

Compressed-Gas Spray

Adiabatic Evaporation of Water into Vacuum

Entropy Changes in Mixing Ideal Gases

Arranging Balls into Boxes

Prepared by M. Brodie

Ranque-Hilsch Vortex Tube

Irreversible and Reversible Temperature Equilibration
Prepared by T. Hogg


Rankine Cycle

Otto Cycle

Prepared by H. Binous, B.G. Higgins, N. Faqir, and A. Bellagi

Ordinary Vapor Compression (OVC) Cycle for Refrigerant R-134a

Refrigeration Cycle Coefficient of Performance

Prepared by M. D. Normand and M. Peleg

Carnot Cycles with Irreversible Heat Transfer

Phase Equilibrium in a Pure Fluid/Phase Diagrams

Pressure-Temperature Phase Diagram for Water

Fluids in the Critical Region

Prepared by S.M. Blinder

Single-Component P-V and T-V Diagrams

Phase Behavior on a Pressure-Volume Diagram

Circumnavigating the Critical Point

Adiabatic Compression of Water in VLE

P-V Diagram for Heating a Vapor-Liquid Mixture at Constant Volume

Heating Water in a Closed Vessel

Prepared by H. Binous, I. Boukholda, and A. Bellagi

Compare Clausius-Clapeyron and Antoine Equations

Prepared by S.M. Blinder

Pressure-Enthalpy Diagram for Water

Temperature-Entropy Diagram for Water

Enthalpy-Entropy Diagram for Water

Injecting a Liquid into an
Evacuated Tank

Compressibility Factor Charts

Fugacity and Departure Functions

Single-Component Fugacity

Fugacity from Equation of State for Water

Chemical Potential Dependence
on Temperature & Pressure

Enthalpy and Entropy Departure Functions for Gases


Simulation of a Simple Gas Pressure Model

Prepared by J. McLoone

PhET Simulation: Atomic Interactions
PhET Interactive Simulations
University of Colorado Boulder

PhET Simulation: States of Matter
PhET Interactive Simulations
University of Colorado Boulder

Maxwell Relations