AIIMS2013Chemistry-Chemical Kinetics

AIIMS 2013 Chemistry Activation Energy MCQ Question

Type: MCQ-conceptual-Medium-Class 12

Energy of activation of forward reaction for an endothermic process is 50 kJ. If enthalpy change for forward reaction is 20 kJ then enthalpy change for backward reaction will be

A

30 kJ

B

20 kJ

C

70 kJ

D

50 kJ

Correct Answer

Option A

Detailed Explanation

For endothermic reaction, E_a(f) = E_a(b) + ΔH

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