##### Compressibility Factor Charts

##### Description

The compressibility factor chart plots the compressibility factor Z, equal to PV/RT, where V is the volume per mole, versus the reduced pressure P

P

_{r}for several values of the reduced temperature T_{r}. The reduced pressure and temperature are defined byP

_{r}= P/PC and T_{r}= T/T_{C}, respectively, where P_{C}is the critical pressure and T_{C}is the critical temperature. Use buttons to select one of five molecules, and move the black dot to display the compressibility factor curve (blue) for any value of T_{r}between 1.0 and 1.8. The Z and P_{r}values for the location of the black dot are displayed on the chart. For an ideal gas, Z = 1 (green line). view simulation and instructional video

##### About

This simulation was made at the University of Colorado Boulder, Department of Chemical and Biological Engineering. Author(s): Rachael L. Baumann, Patrick Doyle

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