Surface tension of ethane-methane solutions: 1. Experiment and thermodynamic analysis of the results

被引：29
|
作者：
Baidakov, Vladimir G. [1 ]
Kaverin, Aleksey M. [1 ]
Khotienkova, Maria N. [1 ]
机构：
[1] Russian Acad Sci, Inst Thermophys, Ural Branch, Ekaterinburg 620016, Russia
来源：
FLUID PHASE EQUILIBRIA | 2013年 / 356卷
基金：
俄罗斯基础研究基金会;
关键词：
Capillary constant; Surface tension; Ethane-methane solutions; Method of capillary rise; Adsorption; LIQUID-VAPOR EQUILIBRIA; BINARY-MIXTURES; CARBON-DIOXIDE; NITROGEN;
D O I：
10.1016/j.fluid.2013.07.008
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The paper presents the results of measuring the capillary constant a(2) and calculating the surface tension sigma of ethane-methane solutions. Experimental data have been obtained in the temperature range from 93.15 to 283.15 K at pressures from that of saturated vapors of pure ethane to 4 MPa. Equations that approximate the temperature, pressure and concentration dependences of a(2) and sigma are suggested. The concentration dependence of the surface tension is described in the framework of models of an ideal and a regular solution. The relative adsorption has been calculated. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：90 / 95
页数：6
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