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DeltaU^(@) of combustoin of methane is -...

`DeltaU^(@)` of combustoin of methane is `-XKJ mol ^(-1)` The value of `DeltaH^(@)` is :-

A

`-X-596R`

B

`-X+596R`

C

`X+596R`

D

`X-596R`

Text Solution

Verified by Experts

The correct Answer is:
A
`CH_(4)(g)+2O(g)toCO_(2)(g)+2H_(2)(g)+2H_(2)O(l)`
`DeltaH^(@)=DeltaH^(@)=DeltaU^(@)+Deltan_(g)RT`
`DeltaH^(@)=-x+(-2)Rxx298`
`DeltaH^(@)=-x-596R`
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