Factors Affecting Reactions in Solids

Reactions of sohds frequently depend on the formation and growth of active sites called nucki. For some of the kinetic models, the geometric nature of the growth of these nuclei determines the form of the rate law for the reaction. For example, a nucleus that grows in two dimensions gives rise to a different rate law than one that is growing in one or three dimensions. 

From what has already been said, we can see that phase boundary advancement from these nuclei is another important factor in reactions in 

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