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Q.

An endothermic reaction A→B has an activation energy 15 kcal/mole and the heat of reaction is 5 kcal/mole. The activation energy of the reaction B→  A is

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a

10 kcal/mole

b

20 kcal/mole

c

15 kcal/mole

d

Zero

answer is C.

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Detailed Solution

Eaf-Eab=∆H

15-Eab= 5

Eab=15=10k.cal/mole

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An endothermic reaction A→B has an activation energy 15 kcal/mole and the heat of reaction is 5 kcal/mole. The activation energy of the reaction B→  A is