A GENERALIZED EQUATION FOR THE LATENT HEAT OF VAPORIZATION

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A GENERALIZED EQUATION FOR THE LATENT HEAT OF VAPORIZATION

P. L. CHU S. S. CHIN Chekiang University, Hangchow, China

Online:1951-04-25 Published:1951-04-25

计算蒸发潜热的通用公式

朱葆琳,金松寿

浙江大学化工系 ,浙江大学化学系

Abstract

Abstract: A generalized equation, is derived to calculate the molal latent heat of vaporization, λ, of any substance at any reduced tem-perature, Tr , and reduced pressure, pr, with an error generally less than 5%.

摘要： 著者综合前人计算蒸发潜热的经验公式,诱导出一个新的计算公式如下:λ/T_c=-6.7logP_r(T_r/(1-T_r)~(0.62))任何物质在任何温度T与压力P状态下的蒸发潜热λ,只要有了该物质临界温度与临界压力的数据,就可以根据这个公式计算.式中T_r为绝对温度与临界绝对温度之比,P_r为压力与临界压力之比.此公式的错误小于百分之五.

P. L. CHU S. S. CHIN Chekiang University, Hangchow, China. A GENERALIZED EQUATION FOR THE LATENT HEAT OF VAPORIZATION[J]. .

朱葆琳,金松寿. 计算蒸发潜热的通用公式 [J]. CIESC Journal.