Question

The following data show the rate constant of a reaction measured at several different temperatures. Temperature (K)(K) Rate Constant (1/s)(1/s) 310 0.923 320 2.50 330 6.38 340 15.4 350 35.3

Part A Use an Arrhenius plot to determine the activation barrier for the reaction. Express your answer using three significant figures. Part B Use an Arrhenius plot to determine the frequency factor for the reaction. Express your answer using two significant figures.

Answer 1

So belim: Arhenius equition, ka A e E/RT - link : In A - Eq Slope = - Ea intercept = In A Scanned with CamScanner

usive formulai E l 1-1, 7,7 R at temperature Ti = 300k T = 330 Kit - ki = 12.50 Kz = 6:38 luf eit) e ( 9 ) 0.9368 - [ Eq 8.314 /0 330X320 Eu = 0:9348 X .3/4 X 330 X370 Tele MOR Ea = 22253.935 I Eu = 82.153 kJ mad') RT using formula, lure=&a A - E using daha 13) T = 300k k = 2.50 lu(2.50) = l A - 82-253 X 10 8.914 x 320 30.9169 0.01629 = ln A - In A = 31.833 31-893 A = 66.83441012 6.68 X703 A