For a certain reaction, Ea is 135 kJ and ΔH = 45 kJ. In the presence of a catalyst, the...

For a certain reaction, E_a is 135 kJ and ΔH = 45 kJ. In the presence of a catalyst, the activation energy is 39% of that for the uncatalyzed reaction. Draw a diagram similar to Figure 11.11 but instead of showing two activated complexes (two humps) show only one activated complex (i.e., only one hump) for the reaction. What is the activation energy of the uncatalyzed reverse reaction?

Reference Figure 11.11: