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For A+B rarr C+D,DeltaH=-20 kJ mol^-1, T...

For `A+B rarr C+D,DeltaH=-20 kJ mol^-1`, The activation energy of the forward reaction is 85 kJ `mol^-1`. The activation energy for backward reaction is…….kJ `mol^-1`:

A

65

B

105

C

85

D

40

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The correct Answer is:
B
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