Finding reverse activation energy

[Arianna Ko 2E]

How do you calculate the reverse activation energy or reactions? And is calculating the reverse activation energy for an endothermic and exothermic reaction different?

[Saman Andalib 1H]

To find the reverse activation energy, you must first be told that the reaction is reversible, as otherwise it may take a completely different reaction pathway during the reverse reaction and the reverse activation energy cannot be calculated. If the reaction is reversible, you also must be given a graph illustrating the energy values of the products, reactants, and transition state. Once you are given this information, the reverse activation energy is simply the difference between the potential energy of the transition state and the potential energy of the products.