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If a reaction A+BtoC is exothermic to th...

If a reaction `A+BtoC` is exothermic to the extent of 30 KJ/mol and the forward reaction has an activation energy of 70 KJ/mol, the activation energy for the reverse reaction is

A

30 KJ/mol

B

40KJ/mol

C

70KJ/mol

D

100KJ/mol

Text Solution

Verified by Experts

The correct Answer is:
D
`A+BtoC+30,DeltaH=A.E.(f)-A.E(b)-30=70-A.E(b),A.E.(b)=100`
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