Single Choice

In which of the following case, $$E_a$$ of the backward reaction is greater than that of the forward reaction?

A$$A+10 kcal\rightarrow B, E_a= 50 kcal$$
B$$A+20 kcal\rightarrow B, E_a=40 kcal$$
C$$A+40 kcal\rightarrow B, E_a= 10 kcal$$
D$$A-40 kcal\rightarrow B, E_a= 20 kcal$$
Correct Answer

Solution

$$\Delta H=E_{af}-E_{ab}$$.
In the reaction given in option D, The actiation energy of product B is greater than the activation energy of reactant A.

SIMILAR QUESTIONS

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