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STATISTICAL THERMODYNAMIC MODEL FOR CALCULATION OF SURFACE TENSION OF PURE LIQUIDS

Li Chunxi;Li Zhibao;Li Yigui;Lu Jiufang;Song Hongyan(Department of Chemical Engineering,Tsinghua University,Beijing 100084)(Department of Applied Chemistry,Shandong Institute of Building Materials,Jinan 250022)   

  • Online:1996-06-25 Published:1996-06-25

纯液体表面张力的统计热力学模型

李春喜,李志宝,李以圭,陆九芳,宋红燕   

  1. 清华大学化学工程系!北京100084,清华大学化学工程系!北京100084,清华大学化学工程系!北京100084,清华大学化学工程系!北京100084,山东建材学院应化系!济南250022

Abstract: two equations for the calculation of surface tension of pure liquids are derived based on statistical thermodyanics by expressing the intermolecular potential as lennard-Jones pair potential.This method is simple,accurate and easy to use.The calculation results for the 22 pure liquids show that these equations are superior to the empirical forula and other theoretical equations.The average relative deviations for these two equations are within 5% and 1.5% respectively.

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