ln(k1/k2) = Ea/R (1/T2 - 1/T1)
Ea = 262 kJ/mol = 262000 J/mol
k1 = 6.1 x 10-8 s-1 T1 = 600 K
k2 = ? T2 = 870 K
R = 8.314 J/mol K
ln(6.1 x 10-8) - lnk2 = (262000 J/mol) / (8.314 J/mol K) [(1/870)-(1/600)]/K
-16.6124 - lnk2 = 31513 x -0.00051724
lnk2 = 16.29978-16.6124
lnk2 = -0.3126
k2 = e-0.3126
k2 = 0.73
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