Thermodynamic pressures for hard spheres and closed-virial equation-of-state

Bannerman M, Lue L, Woodcock LV (2010)


Publication Language: English

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2010

Journal

Publisher: American Institute of Physics (AIP)

Book Volume: 132

Article Number: 084507

Journal Issue: 8

DOI: 10.1063/1.3328823

Abstract

Hard-sphere molecular dynamics (MD) simulation results, with six-figure accuracy in the thermodynamic equilibrium pressure, are reported and used to test a closed-virial equation-of-state. This latest equation, with no adjustable parameters except known virial coefficients, is comparable in accuracy both to Pad́ approximants, and to numerical parameterizations of MD data. There is no evidence of nonconvergence at stable fluid densities. The virial pressure begins to deviate significantly from the thermodynamic fluid pressure at or near the freezing density, suggesting that the passage from stable fluid to metastable fluid is associated with a higher-order phase transition; an observation consistent with some previous experimental results. Revised parameters for the crystal equation-of-state [R. J. Speedy, J. Phys.: Condens. Matter 10, 4387 (1998)] are also reported. © 2010 American Institute of Physics.

How to cite

APA:

Bannerman, M., Lue, L., & Woodcock, L.V. (2010). Thermodynamic pressures for hard spheres and closed-virial equation-of-state. Journal of Chemical Physics, 132(8). https://doi.org/10.1063/1.3328823

MLA:

Bannerman, Marcus, Leo Lue, and Leslie V. Woodcock. "Thermodynamic pressures for hard spheres and closed-virial equation-of-state." Journal of Chemical Physics 132.8 (2010).

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