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Hooman Fatoorehchi
Assistant Professor
School of Chemical Engineering
University of Tehran, Tehran, Iran
Formulas in this page are typed in $\LaTeX$.
Online Peng-Robinson EOS Calculator
(C) 2022 by Hooman Fatoorehchi
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Go to the compressor power calculator
Go to the thermodynamics page (details of the P-R EOS)
Critical Properties of Some Chemical Compounds
Compound |
TC [K] |
PC [bar] |
$\omega$ [-] |
MW [kg/kgmol] |
Methane |
190.6 |
46.1 |
0.011 |
16.0425 |
Ethane |
305.4 |
48.8 |
0.099 |
30.0690 |
Propane |
369.9 |
38 |
0.199 |
44.0956 |
n-Butane |
425.2 |
42.5 |
0.153 |
58.1222 |
i-Butane |
408.2 |
46.5 |
0.183 |
58.1222 |
n-Pentane |
469.7 |
33.7 |
0.251 |
72.1488 |
i-Pentane |
460.4 |
33.9 |
0.227 |
72.1488 |
n-Hexane |
507.5 |
30.1 |
0.299 |
86.1754 |
n-Heptane |
540.3 |
27.4 |
0.349 |
100.2019 |
n-Octane |
568.8 |
24.9 |
0.398 |
114.2285 |
n-Nonane |
594.55 |
22.81 |
0.4433 |
128.2551 |
n-Decane |
617.7 |
21.03 |
0.4884 |
142.2817 |
Undecane |
638.8 |
19.9 |
0.539 |
156.3083 |
CO2 |
304.12 |
73.77 |
0.22394 |
44.0095 |
H2S |
373.1 |
89.63 |
0.1005 |
34.081 |
N2 |
126.19 |
33.978 |
0.0372 |
28.0134 |
Water |
647.09 |
220.64 |
0.34429 |
18.0153 |
COS |
378.8 |
63.49 |
0.0978 |
60.075 |
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