"trimolecular" - 1 õppematerjal

Füüsikaline keemia II eksami konspekt

k = k´H2Ov The number of molecules which react in an elementary step is called the molecularity of the elementary reaction. Molecularity is defined only for elementary reactions and should not be used to describe overall reactions that consist of more than one elementary step. In fact the only elementary reaction which exists is the bimolecular one. However, all the types of reactions given below are considered to be elementary reactions. The unimolecular reaction and the trimolecular reactions, however, are in fact simple reactions from the kinetic point of view since they can be explained by trivial combinations of bimolecular reactions. Examples of each case are given below: A products unimolecular reaction A + B products 2A products bimolecular reactions A + B + C products 2A + B products trimolecular(termo-