The activation energy for a simple chemical r | vedclass

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Question

(D) The relationship between the activation energy of the forward reaction $(E_{a,f})$ and the reverse reaction $(E_{a,r})$ is given by the equation:

Vedclass · Accepted Answer

Can be less than or more than ${E_a}$

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(D) The relationship between the activation energy of the forward reaction $(E_{a,f})$ and the reverse reaction $(E_{a,r})$ is given by the equation: $E_{a,f} - E_{a,r} = \Delta H$,where $\Delta H$ is the enthalpy change of the reaction.For an exothermic reaction,$\Delta H  E_{a,f}$.For an endothermic reaction,$\Delta H > 0$,which implies $E_{a,r} Therefore,the activation energy for the reverse reaction can be less than or more than ${E_a}$ depending on the nature of the reaction.

The activation energy for a simple chemical reaction $A \to B$ is ${E_a}$ in the forward direction. The activation energy for the reverse reaction:

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