The rate constant for a reaction is 1.5 x 10-2 s-l at 775 K and 3.5 x 10-2 s at 825 K. What is the activation energy? (R = 8.314 J/Kmol) A. 60 kJ/mol B. 90 kJ/mol C. 120 kJ/mol D. 180 kJ/mol

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