Application of the Monte Carlo Method to Modeling Kinetic
Processes of Polyatomic Molecules and Clusters:
III. Kinetics of Reversible Reactions of Polyatomic Molecules

I. V. Zhil’tsova, I. S. Zaslonlko, and Yu. K. Karasevich

Semenov Institute of Chemical Physics, Russian Academy of Sciences, Moscow, 177977 Russia

Received December 4, 2000

Abstract—The Monte Carlo simulations of the reversible isomerization is carried out. The rate constants for
the forward and reverse reaction of dichloroethylene cis–trans isomerization are determined for a broad range
of initial conditions. Its is shown that the mutual effect of two actively interacting reactions occurring with
energy exchange leads to a number of kinetic features of the process: characteristic changes in the rate constants
during the process and the dependence of the equilibrium values of rate constants on pressure. The physical
nature of these features associated with the disturbance of the function of distribution over vibrational energy
due to the reaction is discussed.


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