STANDARDPhysics-Thermodynamics
STANDARD Physics Enthalpy and Activation Energy MCQ Question
Type: MCQ-conceptual-Medium-Class 11
For an endothermic reaction, ΔH represents the enthalpy of the reaction in kJ mol⁻¹. The minimum amount of activation energy will be:
A
Less than zero
B
Equal to ΔH
C
Less than ΔH
D
More than ΔH
Correct Answer
Option D
Detailed Explanation
For an endothermic reaction, the activation energy must be greater than the enthalpy change (ΔH) because energy is required to overcome the energy barrier.
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