1.

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

Answer»

ZERO
`ltDelta_(f)U^(-)`
`gtDelta_(f)U^(-)`
EQUAL to `Delta_(f)U^(-)`

SOLUTION :`Delta_(f)H^(-) = Delta_(f)U+ pDeltaV. So Delta_(f)H^(-)ltDelta_(f)U^(-)`


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