Mutual diffusion in a liquid mixture of argon and krypton

J.C. Lee

Physica A: Statistical Mechanics and its Applications, 1997, vol. 247, issue 1, 140-152

Abstract: Molecular dynamics simulations are performed for an equimolar mixture of argon and krypton. The concentration-fluctuation autocorrelation functions Fm, the collective and individual velocity autocorrelation functions Zm and Zs, and the mean-square displacements are measured. The mutual diffusion coefficient determined from Fm is less than measured previously, but this is due to the approximation Q = 1 in the previous measurements for the thermodynamic factor Q which we find less than unity. We also note that Zs exhibits an interesting temperature-dependent late-time behavior which arises from the back scattering effect.

Keywords: Mutual diffusion; Thermodynamic factor; Long time memory (search for similar items in EconPapers)
Date: 1997
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:247:y:1997:i:1:p:140-152

DOI: 10.1016/S0378-4371(97)00398-1

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