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NANOSYSTEMS: PHYSICS, CHEMISTRY, MATHEMATICS, 2015, 6 (4), P. 479–488

Evolution of size and composition of a multicomponent gas bubble in liquid solution

A. E. Kuchma – Department of Statistical Physics, Faculty of Physics, St. Petersburg State University, Ulyanovskaya 1, Petrodvoretz, St. Petersburg, 198504, Russia
A. K. Shchekin – Department of Statistical Physics, Faculty of Physics, St. Petersburg State University, Ulyanovskaya 1, Petrodvoretz, St. Petersburg, 198504, Russia; akshch@list.ru

The equations describing the transient and steady stages of size and composition evolution for a gas bubble which grows or shrinks due to the diffusion of several gases dissolved in liquid solution have been derived. The diffusion fluxes for gases in the liquid mixture caused by the bubble growth or dissolution were assumed to be quasistationary and the mixture of the gases in the bubble was treated as ideal. The analytical solutions for the obtained evolution equations have been found for bubbles of any size with an arbitrary number of components in the case of equal products of diffusivities and solubilities of dissolved gases in the liquid solution, and for sufficiently large binary bubbles for which capillary effects can be neglected.

Keywords: bubble, multicomponent, supersaturated solution, diffusion, kinetics of growth.

PACS 05.70.Fh, 05.70.Np, 47.55.db, 47.57.eb, 68.35.Rh

DOI 10.17586/2220-8054-2015-6-4-479-488

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