Prediction of Self-diffusion Coefficients of Molecules in Liquids

Chem. J. Chinese Universities ›› 1992, Vol. 13 ›› Issue (2): 231.

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Prediction of Self-diffusion Coefficients of Molecules in Liquids

CHEN Liu-ping, HAN Shi-jun

Department of Chemistry, Zhe Jiang University, Hangzhou, 310027

Received:1991-02-08 Online:1992-02-24 Published:1992-02-24

Abstract

Abstract: On the basis of the layer structure model of liquid, this paper presents an equation for predicting the self-diffusion coefficients of molecules in liquidsThe equation has been tested with 24 liquids in a wide temperature range, with an average deviation of 38% The values of the configuration parameter ξ which varies with the variation of temperatures and different substances were analyzedThis is of great importance for understanding the microstructure of the liquid and the mechanism of the diffusion processes, and for expounding the rationality of the layer structure model.

Key words: Self-diffusion coefficients, Liquids, Layer structure model

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CHEN Liu-ping, HAN Shi-jun . Prediction of Self-diffusion Coefficients of Molecules in Liquids[J]. Chem. J. Chinese Universities, 1992, 13(2): 231.

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Prediction of Self-diffusion Coefficients of Molecules in Liquids

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