Collect. Czech. Chem. Commun. 1985, 50, 2635-2638

Effect of mode separation on the decomposition rate of polyatomic molecules

Milan Šolc

Institute of Inorganic Chemistry, Czechoslovak Academy of Sciences, 160 00 Prague 6


A generalized equation for the unimolecular rate constant in the low-pressure region is used to estimate the effect of mode separation on decomposition rate. The controlling factor in determining the degree of ergodicity of the dynamics, and hence the decomposition rate, is the number of mode sets between which energy exchange is frozen. The distribution of modes within the sets is not crucial.