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Mutual diffusion in a liquid mixture of argon and krypton

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  • Lee, J.C.

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.

Suggested Citation

  • Lee, J.C., 1997. "Mutual diffusion in a liquid mixture of argon and krypton," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 247(1), pages 140-152.
    • Handle: RePEc:eee:phsmap:v:247:y:1997:i:1:p:140-152
    DOI: 10.1016/S0378-4371(97)00398-1
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    1. Westermeyer, J. & Neider, J. & Stone, B. & Bearman, J., 1980. "An evaluation of alcoholism services in Minnesota using a social indicator method," American Journal of Public Health, American Public Health Association, vol. 70(11), pages 1209-1211.
    2. Helmut Frisch, 1969. "Consumption, the rate of interest and the rate of growth in the von neumann model," Naval Research Logistics Quarterly, John Wiley & Sons, vol. 16(4), pages 459-484, December.
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