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Q.

An exothermic reaction A⟶B has an activation energy of 17 kJ per mole of A. The heat of'reaction is - 40 KJ/mole. The activation energy for the reverse reaction B⟶A is :

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a

75 KJ/mole

b

17 KJ/mole

c

57 KJ/mole

d

67 KJ/mole

answer is C.

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Detailed Solution

The activation energy for the reverse reaction B⟶A is :

Eaf−Eab=ΔH17−Eab=−40⇒Eab=57kJ/mole

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