Equation of state of additive hard-disk fluid mixtures: A critical analysis of two recent proposals

Abstract

A detailed analysis of two different theoretical equations of state for a binary mixture of additive hard disks [C. Barrio and J. R. Solana, Phys. Rev. E 63, 011201 (2001); A. Santos, S. B. Yuste and M. Lopez de Haro, Mol. Phys. 96, 1 (1999)], including their comparison with Monte Carlo results, is carried out. It is found that both proposals, which require the equation of state of the single component system as input, lead to comparable accuracy when the same input is used in both, but the one advocated by Santos et al. is simpler and complies with the exact limit in which the small disks are point particles.

arXiv comment6 pages, 4 figures; to be published in PRE

References in corpus (3)

• Equation of state of a multicomponent d-dimensional hard-sphere fluid
• Virial coefficients and equations of state for mixtures of hard discs, hard spheres and hard hyperspheres
• Erratum: Is it possible to infer the equation of state of a mixture of hard discs from that of the one-component system?

Cited by in corpus (6)

• Contact values of the radial distribution functions of additive hard-sphere mixtures in d dimensions: A new proposal
• Structural and Thermodynamic Properties of Hard-Sphere Fluids
• Alternative Approaches to the Equilibrium Properties of Hard-Sphere Liquids
• Equation of state of polydisperse hard-disk mixtures in the high-density regime
• The concept of induced surface and curvature tensions and a unified description of the gas of hard discs and hard spheres
• Fourth virial coefficients of asymmetric nonadditive hard-disc mixtures