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Effect of brownian diffusion on chemical kinetics
Author(s) -
Sitarski M.
Publication year - 1981
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.550130204
Subject(s) - chemistry , reaction rate constant , thermodynamics , kinetics , brownian motion , diffusion , radical , aerosol , chemical kinetics , kinetic energy , chemical reaction , statistical physics , molecule , kinetic theory , chemical reaction kinetics , computational chemistry , classical mechanics , quantum mechanics , organic chemistry , physics
A new method of theoretical prediction of the kinetic rate constants of fast chemical reactions in solutions is presented. It takes into account the effect of finite diffusive displacements of the reacting molecules. The approach is based on the solution of the steady‐state Fokker–Planck equation by the moments method of Grad developed in the theory of coagulation of aerosol particles. A comparison of the predicted rate constants with the experimental data provided by Schuh and Fischer for the self‐reaction of tert ‐butyl radicals in n ‐alkanes shows a good correspondence.