A SEMIEMPIRICAL PROCEDURE TO DESCRIBE THE THERMODYNAMICS OF DISSOLUTION OF NONPOLAR GASES IN WATER

被引：30

作者：

ALVAREZ, J

FERNANDEZPRINI, R

机构：

[1] Departamento Quimica de Reactores, Comisión Nacional de Energía Atómica, 1429 -Capital FederalArgentina

来源：

FLUID PHASE EQUILIBRIA | 1991年 / 66卷 / 03期

关键词：

D O I：

10.1016/0378-3812(91)85063-Z

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Measurements of the solubility of nitrogen in water at 582 and 612 K up to 54 MPa of gas pressure are reported. These measurements enabled us to test a method of determining the solute activity coefficient by means of a semiempirical perturbation method. The procedure is validated with a recently derived thermodynamic relationship that should be obeyed by dilute solutions close to the critical point of the pure solvent. As a consequence, a simplified procedure of measurement complemented by the semiempirical perturbation method of calculation is proposed and tested for the case of the ethylene-water system. The results are good and the method enables the description of the thermodynamics of dissolution over wide ranges of the state variables.

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页码：309 / 326

页数：18

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