The activation energy for a simple chemical reaction A B is E _a in forward direction. The activation energy for reverse reaction:

Step-by-step solution

The activation energy for the reverse reaction, E _ a ( rev ) , is the difference between the product energy and transition state at the peak of the diagram. H _r is the difference between the potential energy of the reactant and the potential energy of the product. Related Theory In a reversible reaction of bi-molecular type the activation energy for forward reaction is positive. Whereas, for the backward reaction activation energy is negative.