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If a reaction A+BrarrC is exothermic to ...

If a reaction A+B`rarr`C is exothermic to the extent of 30 kJ/mol and the forward reaction has an activation energy 70 kJ/mole. The activation energy for the reverse reaction is

A

30 kJ/mole

B

40 kJ/mol

C

70 kJ/mole

D

100 kJ/mole

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The correct Answer is:
D
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