AIPMT PRELIMS2010Chemistry-Chemical Kinetics
AIPMT PRELIMS 2010 Chemistry Activation Energy MCQ Question
Type: MCQ-conceptual-Medium-Class 12
For an endothermic reaction, energy of activation is Eₐ and enthalpy of reaction is ΔH (both of these in kJ/mol). Minimum value of Eₐ will be
A
Equal to zero
B
Less than ΔH
C
Equal to ΔH
D
More than ΔH
Correct Answer
Option D
Detailed Explanation
For endothermic reactions, the activation energy must be greater than the enthalpy change to overcome the energy barrier.
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