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Compressibility Factors Using the Soave-Redlich-Kwong Equation of State

​
reduced temperature
T
r
1.
The Soave–Redlich–Kwong equation of state can accurately describe a compound in both liquid and vapor phases. This Demonstration applies this equation of state to estimate and plot the compressibility factor,
Z=
PV
RT
, versus reduced pressure,
P
r
=
P
P
c
, for ethane at various values of the reduced temperature,
T
r
=
T
T
c
.​
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