Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2001-04-30
Physics
Condensed Matter
Statistical Mechanics
4 pages, including 1 figure
Scientific paper
A flaw in the comparison between two different theoretical equations of state for a binary mixture of additive hard disks and Monte Carlo results, as recently reported in C. Barrio and J. R. Solana, Phys. Rev. E 63, 011201 (2001), is pointed out. It is found that both proposals, which require the equation of state of the single component system as input, lead to comparable accuracy but the one advocated by us [A. Santos, S. B. Yuste, and M. L\'{o}pez de Haro, Mol. Phys. 96, 1 (1999)] is simpler and complies with the exact limit in which the small disks are point particles.
de Haro Lopez M.
Santos Andrés
Yuste Santos B.
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