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For a given reaction, energy of activati...

For a given reaction, energy of activation for forward reaction `(E_(af)` is 80 kJ `mol^(-1).DeltaH=-40"kJ mol"^(-1)` for the reaction. A catalyst lowers `E_(af)` to 20 kJ `mol^(-1)`. The ratio of energy of activation for reverse reaction before and after addition of catalyst is :

A

`1.0`

B

`0.5`

C

`1.2`

D

`2.0`

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The correct Answer is:
D
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