Final answer:
The activation energy of the reverse reaction can be calculated using the formula Ea' = Ea - ΔH. Here, it would be 17 kJ.
Step-by-step explanation:
In this question, you're asked to find the activation energy of the reverse reaction given the enthalpy change (ΔH) and the activation energy (Ea) for the forward reaction. According to transition state theory, the activation energy of the reverse reaction can be calculated using this formula: Ea' = Ea - ΔH. Therefore, the activation energy for the reverse reaction would be Ea' = 46 kJ - 29 kJ = 17 kJ.
Learn more about Activation Energy