Non-linear Arrhenius behaviour of rate constants

The development of apparatus to study the radiation chemistry of water at elevated temperatures opened the way to investigate rates of reaction of more general interest. Examples of reactions of eaq and OH that exhibit non-linear Arrhenius behaviour are presented in the next two Sections. They show how the true chemical rate of a reaction is revealed when the difhision limitation is lifted. 

These reactions can be described by the following general scheme for transfer of an electron fi-om a donor D to an acceptor A [35]  

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