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CHEMICAL ENGINEERING
1.50
2.00
1.30
1.20
1.15
1.10
1.05
1.00
0.95
0.90
T = 0.85
r
0.80
0.70
0.60
2.4
2.8
0.4
0.8
1.2
2.0
1.6
X
1.00 5.00 1.6 1.5 0.4 0.3 0.2 0.1 0 1.05 1.20 1.10 1.15 1.30 1.20 1.50 1.30 1.50 2.00 5.00 3.0 2.8 2.6 2.4 2.2 2.0 1.8 1.6 Reduced pressure, P r X function compressibility
1.15 1.4 Generalised
1.10
1.2
3.9.
Figure
1.0
1.0 5
0.8
temperature, T = 1.00 r
Reduced
0.6
T ∂V X = ( ) P −1 V ∂T P P r = P c T T r = T c 0.4 0.2
12 11 10 9 8 7 6 5 Compressibility function, X 4 3 2 1 0
