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Hard sphere compressibility factors for equation of state development

✍ Scribed by Guang-Wen Wu; Richard J. Sadus

Publisher
American Institute of Chemical Engineers
Year
2004
Tongue
English
Weight
94 KB
Volume
51
Category
Article
ISSN
0001-1541

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✦ Synopsis

Abstract

New molecular simulation data are reported for the compressibility factors of hard spheres covering the isotropic liquid, metastable fluid and solid ranges of density. These data provide a comprehensive set of values for the development of hard‐sphere equations of state. In particular, they represent a substantial increase in the data available at high isotropic liquid densities. A comparison is reported with examples of accurate hard sphere equations. In contrast to literature comparisons, which are weighted towards existing lower density data, including these new higher density data indicates that the overall accuracy of current equations of state is considerably less than previously reported. Β© 2004 American Institute of Chemical Engineers AIChE J, 51: 309–313, 2005

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## Abstract The cubic‐perturbed, hard‐sphere equation of state proposed in 1980 by Ishikawa, Chung and Lu, has been analyzed by PVT criteria, as contrasted to the single component and multicomponent vapor‐liquid equilibria to which it was applied. The analysis compares its representation of the PVT