Deriving the equation of state of additive hard-sphere fluid mixtures from that of a pure hard-sphere fluid

C. Barrio and J.R. Solana

Physica A: Statistical Mechanics and its Applications, 2006, vol. 366, issue C, 79-87

Abstract: We have analyzed the rate of convergence of a series expansion, in terms of the density, of the ratio of the excess compressibility factor of fluid mixtures of additive hard spheres to that of a pure hard-sphere fluid with the same reduced density. The terms in the series can be obtained from the virial coefficients. We have found that the series converges quickly, so that frequently the knowledge of the first two terms of the series, that can be obtained from the second and third virial coefficients which are known analytically, is sufficient to provide an accurate equation of state.

Keywords: Equation of state; Hard spheres; Binary mixtures; Virial coefficients (search for similar items in EconPapers)
Date: 2006
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:366:y:2006:i:c:p:79-87

DOI: 10.1016/j.physa.2005.10.029

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