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The difference between Delta H and Delta...

The difference between `Delta H` and `Delta U` for the combustion of methane at `27^(@)C` will be (in `J mol^(-1)`)

A

`8.314xx27xx(-3)`

B

`8.314xx300xx(-3)`

C

`8.314xx(300)xx(-2)`

D

`8.314xx300xx1`

Text Solution

Verified by Experts

The correct Answer is:
C
`CH_(4)(g)+2O_(2)toCO_(2)(g)+2H_(2)O(l)`
`Deltan=1-3=(-2)`
` :. DeltaH-DeltaE=Deltan_(g)RT=(-2)(8.314)(300)`
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DINESH PUBLICATION-CHEMICAL THERMODYNAMICS AND CHEMICAL ENERGETICS -Exercise
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