Document Detail


Equation of state of nonadditive d-dimensional hard-sphere mixtures.
MedLine Citation:
PMID:  15638605     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
An equation of state for a multicomponent mixture of nonadditive hard spheres in d dimensions is proposed. It yields a rather simple density dependence and constitutes a natural extension of the equation of state for additive hard spheres proposed by us [A. Santos, S. B. Yuste, and M. Lopez de Haro, Mol. Phys. 96, 1 (1999)]. The proposal relies on the known exact second and third virial coefficients and requires as input the compressibility factor of the one-component system. A comparison is carried out both with another recent theoretical proposal based on a similar philosophy and with the available exact results and simulation data in d=1, 2, and 3. Good general agreement with the reported values of the virial coefficients and of the compressibility factor of binary mixtures is observed, especially for high asymmetries and/or positive nonadditivities.
Authors:
A Santos; M López de Haro; S B Yuste
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of chemical physics     Volume:  122     ISSN:  0021-9606     ISO Abbreviation:  J Chem Phys     Publication Date:  2005 Jan 
Date Detail:
Created Date:  2005-01-10     Completed Date:  2006-12-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0375360     Medline TA:  J Chem Phys     Country:  United States    
Other Details:
Languages:  eng     Pagination:  024514     Citation Subset:  -    
Copyright Information:
2005 American Institute of Physics.
Affiliation:
Departamento de Física, Universidad de Extremadura, E-06071 Badajoz, Spain. andres@unex.es
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