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

Delta_(r)U^(@)of formation of CH_(4) (g) at certain temperature is - 3

1.	Delta_(r)U^(@)of formation of CH_(4) (g) at certain temperature is - 393 kJ mol^(-1) .The value of Delta_(r)H^(@) is
Answer» ZERO `ltDelta_(R)U^(@)` `gtDelta_(r)U^(@)` EQUAL to `Delta_(r)U^(@)` SOLUTION :`C+2H_(2)rarrCH_(4)` (s),(G),(g) `Deltan_(g)=-1` `DeltaH=DeltaU+Deltan_(g)RT` `Deltan_(g)=-ve` `DeltaHltDeltaU`

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

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