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For a hypothetical reaction A to B then...

For a hypothetical reaction ` A to B` then activation energy for forward and backward reactions are 19 kJ/mol and 9 kJ /mol respectively. The heat of reaction is

A

`9 kJ mol ^(-1)`

B

`19 kJ mol ^(-1)`

C

`+ 10 kJ mol^(-1)`

D

`28 kJ mol^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
C
`Delta H _("Reaction") = E _(a ("Forward"))- E _(a ("Backward"))`
`= 19 - 9 = + 10 kJ mol ^(-1)`
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