Question

For an endothermic reaction where ΔH represents the enthalpy of the reaction in kJ/mol, the minimum value for the energy of activation will be

(a) less than ΔH

(b) zero

(c) more than ΔH

(d) equal to ΔH

Answer 1

The correct option is (c) more than ΔH.

Explanation:

 ΔH = (E_a)_f - (E_a)_b 

For endothermic reaction, ΔH is positive. Thus, the minimum value for the energy of activation will be more than ΔH.