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An equation for predicting third virial coefficients of nonpolar gases
Author(s) -
De Santis Roberto,
Grande Biagio
Publication year - 1979
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690250603
Subject(s) - virial coefficient , virial theorem , thermodynamics , binary number , extension (predicate logic) , virial expansion , chemistry , statistical physics , mathematics , physics , quantum mechanics , computer science , arithmetic , galaxy , programming language
An empirical correlation for calculating third virial coefficients of nonpolar gases is developed in agreement with the corresponding states theorem. This equation requires the use of a third parameter which can be estimated from molecular parameters. The method is reliable, even for systems where no experimental data are available. The extension to mixtures involves one interaction constant for all possible binary sets.