reaction A->B, determine the activation energy and frequency factor (Arrhenius constant) of the reaction. k (M/s) 0.681 0.715 T(K) 500 1000

Question

Chemistry Kinetics

Answer 1

k1 = 0.681 M/s

k2 = 0.715 M/s

T1 = 500 K

T2 = 1000 K

ln(k2/k1) = -Ea/R(1/T2-1/T1)

ln (0.715/0.681) = -Ea/8.314 (1/1000 - 1/500)

0.0487 = -Ea/8.314 (-0.001)

Ea = 405 J/mole

 

k = Ae^-Ea/RT

use either k and the corresponding T (in K) and the calculated Ea and solve for A