Premium
An equation of state: Its development from argon data and its application to other substances
Author(s) -
Wilsak R. A.,
Thodos George
Publication year - 1985
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.690310505
Subject(s) - argon , equation of state , methane , virial theorem , chemistry , thermodynamics , nitrogen , carbon dioxide , state (computer science) , virial coefficient , mathematics , physics , organic chemistry , algorithm , quantum mechanics , galaxy
Using PVT measurements available in the literature for argon, the following equation of state involving the excess properties π and τ was developed:\documentclass{article}\pagestyle{empty}\begin{document}$$ \pi = \alpha \tau + \beta \left[ {\psi + \frac{\tau }{{\tau + 1}}} \right]\frac{\tau }{{\tau + 1}} $$\end{document} where α, β, and ψ are density‐dependent functions. The results of this relationship for argon have been compared with those obtained using the BWR and the Stewart et al. (1981) equations of state. The present expression was applied in a generalized manner to nitrogen, methane, carbon dioxide, and ammonia. In addition, comparisons have been made using these four substances with three generalized relationships: a truncated virial, a modified Redlich‐Kwong, and the Hirschfelder‐Buehler‐McGee‐Sutton equations of state.