Dieterici Equation of State
Dieterici Equation of State
This Demonstration plots a series of isotherms for a number of real gases using the Dieterici equation of state. The values of , , and (critical temperature, pressure, and volume), , (attractive and repulsive parameters), and (compressibility factor) are calculated and displayed. The Demonstration uses Dieterici's equation for , , the critical constants =a/4Rb, =a/4, =2b, and the compressibility factor . The ideal gas equation is .
T
c
P
c
V
c
a
b
Z
n=1
P(V-b)=RT
-a/RTV
e
T
c
P
c
2
b
2
e
V
c
Z=
V
V-b
-a/VRT
e
PV=nRT