Question

For an endothermic reaction where $\Delta H$ represents the enthalpy of the reaction in $kJmo{l}^{-1}$, the minimum value for the energy of activation will be:

• A. less than $\Delta H$
• B. zero
• C. more than $\Delta H$
• D. equal to $\Delta H$

Answer 1

The correct option is D equal to $\Delta H$

Activation energy: The minimum amount of energy that is required to activate atoms or molecules to a condition in which they can undergo chemical transformation or physical transport.
So, the minimum energy required to activate the reaction will be equal to $\Delta H$.