Virial coefficients and equations of state for mixtures of hard discs, hard spheres and hard hyperspheres
Title:
Virial coefficients and equations of state for mixtures of hard discs, hard spheres and hard hyperspheres
Author:
SANTOS, A. YUSTE, S.B. DE HARO, M.LOPEZ
Appeared in:
Molecular physics
Paging:
Volume 99 (2001) nr. 23 pages 1959-1972
Year:
2001-12-10
Contents:
The composition-independent virial coefficients of a d-dimensional binary mixture of (additive) hard hyperspheres following from a recent proposal for the equation of state of the mixture (Santos, A., Yuste, S. B., and Lopez de Haro, M., 1999, Molec. Phys., 96, 1) are examined. Good agreement between theoretical estimates and available exact or numerical results is found for d = 2, 3, 4 and 5, except for mixtures whose components are very disparate in size. A slight modification that remedies this deficiency is introduced and the resummation of the associated virial series is carried out, leading to a new proposal for the equation of state. The case of binary hard sphere mixtures (d = 3) is analysed in some detail.