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An exothermic reaction, A → B , has an activation energy of 15 kcal m o l - 1 and the energy of reaction is 5 kcal m o l - 1 . The activation energy in kcal m o l - 1 for the reaction, B → A is

Correct answer

20

Step-by-step solution

(E a ) r   =   (E a ) f   +   ΔE   =   15   kcal   mol -1 +5kcalmol − 1 = 20   kcal   mol − 1 .

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