Chemistry - Chemical Kinetics Question with Solution | TestHub

The activation energy for the reverse reaction, ${\mathrm{E}}_{\mathrm{a}(\mathrm{rev})}$, is the difference between the product energy and transition state at the peak of the diagram. ${\mathrm{H}}_r$ 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.