Temperature Dependence of the Chain Reaction Rates

The temperature dependence of simple chemical reactions is defined by the Arrhenius equation (or some other similar equation). The rate of an unbranched chain reaction can also obey this equation (see [230]). 

In contrast to these two cases, the temperature dependence of a branched chain reaction is expected to be different. Indeed, taking Eq. (38.2) and expressing the values involved (vj, Vg, Wq and S = s — 1) by the Arrhenius equation, it is readily seen that the rate of a branched chain reaction does not fulfil this equation [427]. 

However, in some cases, the theoretical treatment of experimental results attempts to approximately describe the temperature dependence of a branched chain reaction by the Arrhenius equation [230]. 

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