△S+△S -(△H+△H,) D=aa e R RT D △S=△S+△S △H=△H+△H △H: activation energy Do: frequency factorR T H H R S S o v v D a e e ( ) 2 * *  + −  + =   D0 : frequency factor : activation energy 0 * * D H S S Sv H H Hv   =  +   =  + 