On the Thermodynamics of Nucleation in Weak Gas-Liquid Solutions

[+] Author and Article Information
C. A. Ward, A. Balakrishnan, F. C. Hooper

Department of Mechanical Engineering, University of Toronto, Toronto, Ontario, Canada

J. Basic Eng 92(4), 695-701 (Dec 01, 1970) (7 pages) doi:10.1115/1.3425107 History: Received February 27, 1970; Online October 27, 2010


Gas-vapor nucleation in liquid solutions is considered. It is shown that for nucleation to occur in a multicomponent solution a nucleus must be created of at least a certain radius. Consideration is then restricted to weak solutions of gas dissolved in liquids with the gas allowed to behave nonideally. A generalized Kelvin equation is derived which relates the partial pressure of the solvent vapor inside a nucleus to the properties of the surrounding solution. It is shown how, for a given temperature, the pressure at which nucleation occurs in a gas-liquid solution is increased as the gas concentration is increased.

Copyright © 1970 by ASME
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