A new thermodynamic method to estimate surface tension of liquids

被引：4

作者：

Zhao, Yueqiang ^{[1
,2
]}

Zhu, Jing ^{[1
]}

Wang, Shengkang ^{[1
]}

Chang, Yanjiao ^{[1
]}

Liu, Weiwei ^{[1
]}

机构：

[1] Jiangsu Ocean Univ, Huaihai Inst Technol, Dept Chem Engn, Lianyungang 222005, Jiangsu, Peoples R China

[2] Jiangsu Ocean Univ, Dept Chem Engn, Lianyungang 222005, Jiangsu, Peoples R China

来源：

PHYSICA B-CONDENSED MATTER | 2022年 / 643卷

关键词：

Surface tension; Cohesive energy; Surface entropy; Organic liquids; Metallic liquids; SIGMA-PROFILE DATABASE; PERTURBED-CHAIN SAFT; TEMPERATURE-COEFFICIENT; PREDICTION; SOLUBILITY; EQUATION; FLUIDS; STATE; MODEL; PURE;

D O I：

10.1016/j.physb.2022.414178

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A new thermodynamic model equation of Vapor-Liquid surface tension gamma is derived, gamma Am = phi(V) (E(L) ? E(V)) ? T & UDelta;S; where Am is the molar surface area, E(L) and E(V) are the molar cohesive energy of liquid phase and vapor phase correspondingly, phi(V) the mean volume fraction exposed to vapor phase of a surface molecule, & UDelta;S the excess surface entropy. phi(V) is a function of (E(L)? E(V))/nsRT, ns denotes the segment number in a chain molecule, phi(V) increases slowly with elevating temperature T. This model has been verified for surface tension estimation of simple liquids, organic liquids (non-polar, polar and hydrogen-bonding) and metallic liquids at various temperatures with successful results.

引用

页数：7

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