For the reaction A → B, ΔH = -13 kJ mol-1 and Ea = 31 kJ mol-1 . What is theactivation energy for the reverse reaction B → A?

An endothermic reaction, A→ B has an activation energy 15 kcal/mol and energy of the reaction is 5 kcal/mol. The activation energy of the reaction, B → A is:

The activation energy for the forward reaction X Y is 60 KJ mol−1 and ΔH is −20 KJ mol−1. The activation energy for the backward reaction Y X is:

A particular chemical reaction occurs at room temperature (293 K) at half the rate that it does at 300 K. What is the activation energy for this reaction?

If 3 moles of a compound use 12 J of energy in a reaction, what is the Hreaction in kJ/mol?A.-4 kJ/molB.4 kJ/molC.-0.004 kJ/molD.0.004 kJ/mol

At 500K the rate of a bimolecular reaction is ten times the rate at 400K. Find the activation energy of this reaction: a. From Arrhenius’ law.