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Two reactions R1 and R2 have identical pre exponential factors. Activation energy of R1 exceeds that of R2 by 10 kJ mol-1. If k1 and k2 are rate constants for reactions R1 and R2, respectively at 300 K, then ln(k2/k1) is equal to (R =8.314 J mol-1K-1)

(a) 8 (b) 12 (c) 6 (d) 4

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