JEE Main Chemistry question
For an endothermic reaction, where ΔH represents the enthalpy of the reaction in kJ/mol, the minimum value for energy of activation will be:
Answer: (D)
Solution
Ea(backward)=Ea(forward)−ΔH≥0 → Ea(forward)≥ΔH; the minimum possible is Ea(forward)=ΔH.