Question

In a reversible reaction the energy of activation
of the forward reaction is 50 kcal. The energy of
activation for the reverse reaction will be
(a) < 50 kcal
(b) either greater than or less than 50 kcal
(c) 50 kcal
(d) > 50 kcal

Answer 1

Answer:

(b)Either greater than or less than 50 kcal

Answer 2

(b) either greater than or less than 50 kcal

Explanation:

The activation energy of a reverse reaction decides whether the given reaction is exothermic or endothermic. So, the energy of activation of reverse reaction is either greater or less than 50 kcal in case of exothermic reaction. The activation energy for reverse reaction is more than activation energy of the forward reaction. In case of endothermic reaction, the activation energy for reverse reaction is less than activation energy of the forward reaction.

So option B is the answer.