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Reaction A+B rarr C +D+38 kcal has acti...

Reaction `A+B rarr C +D+38 ` kcal has activation energy 20 kcal . Activation energy for reaction `C+D rarr A+B` is :

A

20 kcal

B

`-20` kcal

C

58 kcal

D

18 kcal

Text Solution

Verified by Experts

The correct Answer is:
C
(C ) `E_(a) ` (backward )
` =DeltaE +E_(a)` (forward ) = 38 +20 = 58 kcal
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