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Delta(f)U^(-) of formation of CH(4) (g) ...

`Delta_(f)U^(-)` of formation of `CH_(4) (g)` at certain temperature is `-393 kJ mol ^(-1)` . The value of `Delta_(f)H^(-)`

A

zero

B

`ltDelta_(f)U^(-)`

C

`gtDelta_(f)U^(-)`

D

equal to `Delta_(f)U^(-)`

Text Solution

Verified by Experts

The correct Answer is:
b
`Delta_(f)H^(-) = Delta_(f)U+ pDeltaV. So Delta_(f)H^(-)ltDelta_(f)U^(-)`
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