# Isotherms of Peng-Robinson Equation of State

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Equations of state, determined empirically or theoretically, can determine the thermodynamic properties of fluids. Equations of state correlate the temperature, pressure, and volume of fluids.

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Contributed by: Fábio Fortkamp (August 2013)

Open content licensed under CC BY-NC-SA

## Snapshots

## Details

Snapshot 1: temperatures below critical value

Snapshot 2: temperatures above critical value

Snapshot 3: combination of parameters that produce non-physical negative pressures

Reference

[1] J. R. Elliot and C. T. Lira, *Introductory Chemical Engineering Thermodynamics*, Upper Saddle River, NJ: Prentice Hall, 1999.

## Permanent Citation

"Isotherms of Peng-Robinson Equation of State"

http://demonstrations.wolfram.com/IsothermsOfPengRobinsonEquationOfState/

Wolfram Demonstrations Project

Published: August 22 2013