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Kinetics of bimolecular chemical reaction by a modified diffusion equation

✍ Scribed by Shingo Kondo; Yo Takano

Publisher: John Wiley and Sons
Year: 1976
Tongue: English
Weight: 363 KB
Volume: 8
Category: Article
ISSN: 0538-8066
DOI: 10.1002/kin.550080402

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✦ Synopsis

Abstract

In order to describe the kinematical behavior of the bimolecular chmical reaction in a dilute solution of species characterized by a single diffusion coefficient and by some nonuniform spatial distribution of the active site, a diffusion equation with a simple sink term is derived by reducing the many‐body problem to a one‐body problem. The equation is normalized with the concentration of unreacted particles. The so‐called second‐order reaction rate constant can be calculated from the solution of the equation. The equation is applied to the intermolecular termination reaction of polymer radicals on the assumption of free draining. The reaction rate constant gradually decreases with time.

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