ABSTRACT
Almost all aspects of the field of chemistry involve the flow of energy either within or between molecules. Indeed, the occurrence of a chemical reaction between two species implies the availability of some minimum amount of energy in the reacting system. The study of energy transfer processes is thus a topic of fundamental importance in chemistry. Energy transfer in gases is of particular interest partly because very sophisticated methods have been developed to study such events and partly because gas phase processes lend themselves to very complete and detailed theoretical analysis.
