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Journal of Chemical Physics / Volume 110 / Issue 6 / CONDENSED PHASE DYNAMICS, STRUCTURE, AND THERMODYNAMICS: SPECTROSCOPY, REACTIONS, AND RELAXATION

J. Chem. Phys. 110, 3079 (1999); http://dx.doi.org/10.1063/1.477904 (6 pages)

Closed-loop critical curves in simple hard-sphere van der Waals-fluid models consistent with the packing fraction limit

Leonid V. Yelash, Thomas Kraska, and Ulrich K. Deiters

Institut für Physikalische Chemie, Universität zu Köln, Luxemburger Str. 116, D-50939 Köln, Germany

(Received 6 July 1998; accepted 5 November 1998)

Two new hard-sphere equations are proposed which, in combination with a van der Waals attraction term, lead to a biquadratic, respectively a cubic, equation of state. The new equations show the correct limiting behavior at low as well as at high densities; their poles are close to the physical packing fraction of hard spheres. Both equations of state were extended towards mixtures by one-fluid mixing rules, and their global phase behavior was investigated for the special case of equal-sized molecules. Both equations are able to predict closed-loop liquid–liquid immiscibility; the topology of the phenomenenon is the same as for the Carnahan–Starling equation. It appears the occurrence of closed-loop liquid–liquid immiscibility does not depend on the location of the pole nor on the degree of the equation of state used. © 1999 American Institute of Physics.

© 1999 American Institute of Physics

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KEYWORDS and PACS

Keywords

liquid theory, equations of state, mixtures, solubility

PACS

  • 61.20.-p

    Structure of liquids

  • 05.20.Jj

    Statistical mechanics of classical fluids

  • 64.10.+h

    General theory of equations of state and phase equilibria

  • 64.75.-g

    Phase equilibria

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.477904

PUBLICATION DATA

ISSN

0021-9606 (print)  
1089-7690 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    A. van Pelt, C. J. Peters, and J. de Swaan Arons, J. Chem. Phys. 95, 7569 (1991)JCPSA6000095000010007569000001.

    F. H. Ree and W. G. Hoover, J. Chem. Phys. 40, 939 (1964)JCPSA6000040000004000939000001.

    F. H. Ree and W. G. Hoover, J. Chem. Phys. 46, 4181 (1967)JCPSA6000046000011004181000001.

    U. K. Deiters and I. L. Pegg, J. Chem. Phys. 90, 6632 (1989)JCPSA6000090000011006632000001.

    T. Kraska and U. K. Deiters, J. Chem. Phys. 96, 539 (1992)JCPSA6000096000001000539000001.

    B. Baeyens and H. Verschelde, J. Math. Phys. 36, 201 (1995)JMAPAQ000036000001000201000001.

    M. J. Maeso, J. R. Solana, J. Amoros, and E. Villar, J. Chem. Phys. 94, 551 (1991)JCPSA6000094000001000551000001.

    J. I. Goldman and J. A. White, J. Chem. Phys. 89, 6403 (1988)JCPSA6000089000010006403000001.

    Y. Song, R. M. Stratt, and E. A. Mason, J. Chem. Phys. 88, 1126 (1988)JCPSA6000088000002001126000001.


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