Abstract:
Chemical kinetics is examined under conditions such that the medium is quite mobile (classical kinetics), when it can be regarded as immobile throughout the process (i.e. with kinetic non-equivalence of reactant species), and also under intermediate conditions of kinetic non-equivalence maintained only during the lifetime of the leading active species. Methods for studying the kinetics of variation in reactivity due to change in the local properties of the medium are discussed, and reasons for the levelling of reactivity in a series of structurally different moiecules on passing from liquid to solid media are analysed. The bibliography contains 37 references.