流体的自由体积及其应用(Ⅱ)自由体积与平衡性质及传递性质间的关系

文中研究自由体积在流体的宏观性质,尤其是传递性质中的应用,给出了自由体积与Helmholtz自由能、过量Gibbs自由焓G~B等热力学基本量的关系;然后介绍了自由体积与流体传递性质间的关系,概述了有关模型;最后,论述了自由体积在联系平衡性质与传递性质间所起的桥梁作用,导出了流体纯物质及混合物传递性质的有关模型,为进一步的研究和应用提供基本方程和方法。

The Free volume of Fluids and Its Applications (2) The Correlations of Free Volume with Equilibrium and Transport Properties

This paper studies the applications of the free volume concept to equilibriumand transport properties for fluids. Firstly, the correlations of the free volume with the es-sential thermodynamic properties, e. g. Helmholtz free eneryg and excess Gibbs free ener-gy G~E, are derived. Then the equations which correlate the free volume with viscosity,diffusivity and thermal conductivity of fluids are presented, and some models for pure flu-ids and mixtures are reviewed. Finally, the applications of the free volume concept to thecorrelations of the transport properties with equilibrium ones are discussed, and the equa-tions which correlate viscosity and thermal conductivity of liquid mixtures with G~EandH~E is proposed. Fundamental equations and methods for further studies on this subject arealso addressed.