2 16X of the barriers for the two identity reactions. The application to reactions without identity reactions is much more q~ estionable, 4~-'but these difficulties are not relevant to the present work. Equation 2 is not directly applicable to experiment since the values of WR, A, and AGO are not directly measurable. Equation 2 can be converted to an experimentally useful form, if the following assumptions are made. 1. The work term,@, is structure ...