Self Diffusion in Isotopic Fluid
作者:
K. Tankeshwar,
期刊:
Physics and Chemistry of Liquids
(Taylor Available online 1991)
卷期:
Volume 24,
issue 1-2
页码: 21-29
ISSN:0031-9104
年代: 1991
DOI:10.1080/00319109108030645
出版商: Taylor & Francis Group
关键词: Isotopic mixture;Mori coefficients;self diffusion;mole fraction
数据来源: Taylor
摘要:
Expressions for the second and fourth frequency sum rules of the velocity auto-correlation function have been obtained for an isotopic fluid. These expressions and Mori memory function formalism have been used to study the influence of the particle mass and mole fraction on the self diffusion coefficient. Our results confirm the weak mass dependence of the self diffusion. The influence of the mole fraction of the light particles on the self diffusion constant has been found to increase for the larger particle mass.
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