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delta(f) U^(Ө) "of formation of" CH(4)(g...

`delta_(f) U^(Ө) "of formation of" CH_(4)(g)` at a certain temperature is `-393Jmol^(-1).` The value of `delta H^(Ө)is:`

A

zero

B

`lt Delta_(f)U^(@)`

C

`gt Delta_(f)U^(@)`

D

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

Text Solution

Verified by Experts

The correct Answer is:
B
`Delta_(f)H^(@) = Delta_(f)U^(@)+Deltan_(g)RT`
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