che320_class7edited

# che320_class7edited - 7 Residual properties (nonideality)...

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7 Residual properties (nonideality) today . residual properties reference states vapor-liquid equilibrium fugacity of a pure substance announce . 1 st exam (8 am on Fri 18sep2009, 111 Wartik). idterm exam Mon 05oct2009 from 8:15 :15. 114 Midterm exam Mon 05oct2009 from 8:15-11:15. assignments . HW 03 due before class Wed 16sep2009. reading: Ch 03, start Ch 04

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Example. Nonideality of gas volumes For n-butane at 350 K, where its vapor pressure is 9.4573 bar, estimate the non-ideality of the gas volume. answer: -582 cm 3 /mol 115
Residual properties 116

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Residual enthalpy and entropy 117
Residual enthalpy and entropy for SRK, PR 118

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Example. Nonideality of enthalpy and entropy For n-butane at 350 K, where its vapor pressure is 9.4573 bar, estimate the non-ideality of the gas enthalpy and entropy. Find H R and S R using the SRK EOS. answer: H R = -1418 J/mol, S R = -2.96 J/mol-K 119
blank 120

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blank 121
“0” means evaluated at reference state (P 0 , T 0 ). r gases

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## This note was uploaded on 08/22/2010 for the course CH E 320 taught by Professor Matsoukas,themist during the Fall '09 term at Pennsylvania State University, University Park.

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che320_class7edited - 7 Residual properties (nonideality)...

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