Principles of similarity in thermodynamics of microheterogeneous systems: 1. Disperse systems

被引：0

作者：

Shcherbakov, L.M. ^{[1
]}

机构：

[1] Department of Physics, Tver State University, Sadovyi per. 35, Tver 170002, Russia

来源：

Colloid Journal of the Russian Academy of Sciences: Kolloidnyi Zhurnal | 1999年 / 61卷 / 01期

关键词：

Alcohols - Aromatic hydrocarbons - Evaporation - Liquid metals - Mathematical models - Paraffins - Particles (particulate matter) - Phase transitions - Thermodynamics - Vapor pressure;

D O I：

暂无

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学科分类号：

摘要：

Methods of the thermodynamics theory of similarity were extended to monodisperse systems with liquid dispersed phase and particle sizes no less than 0.1 μm. It was shown that for the transition from a single-component system represented by two bulk phases to a disperse system it is necessary to introduce an additional independent reducing scale, whose rational selection corresponded to the size of the critical nucleus. Criteria forms of the Kelvin equation for the vapor droplet pressure, the Thomson equation for phase-transition temperature, and the equation for the heat of evaporation of small droplets obtained earlier by Shcherbakov and Rykov were derived and analyzed. Based on the calculations of introduced similarity criteria, the similarity groups were selected for single-components of monodisperse systems represented by alkanes, aromatic hydrocarbons, alcohols, and liquid alkaline metals.

引用

页码：120 / 125