k1 = 4.65*10-2 sec-1
T1 = 310K
K2 = 0.139sec-1
T2 = 320K
logK2/K1Â Â = Ea/2.303R [1/T1 -1/T2]
log0.139/4.65*10-2 = Ea/2.303*8.314 [1/310
-1/320]
0.4755Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â
= Ea/19.147 (0.00322-0.003125)
0.4755Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â
= Ea *9.5*10-5/19.147
Ea                            Â
= 0.4755*19.147/9.5*10-5Â Â Â =
9.58*104 Joules
KÂ Â =A e-Ea/RT
4.65*10-2 = A
e-9.58*104/8.314*310
4.65*10-2 = Ae-95800/2577.3
4.65*10-2 = Ae-37.17
AÂ Â Â Â Â Â Â Â Â Â Â Â
= 4.65*10-2/7.2*10-17Â Â =
6.45*1014 sec-1