Activation energies for the dissociation of diatomic molecules are less than the bond dissociation energies

Abstract

Rate constants and activation energies for the thermal, o 2 , F 2 , c1 2 , Br 2 , and r 2 are reviewed and summarized.The observed activation energies in all(10) i J.If Eq. ( 9) is multiplied by [A] /2: [A.] and terms are rearranged, J.we obtainwhere X. is the mole fraction of molecules in state i, X. = [A.]/[A],-J.-J.J.and the rate constant, Rate/[M] [A], is expressed ask= r c.x .