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If, combustion of 4g of CH(4) liberates ...

If, combustion of `4g` of `CH_(4)` liberates `2.5kcal` of heat, the heat of combustion of `CH_(4)` is `:`

A

`-20kcal`

B

`-10kcal`

C

`2.5kcal`

D

`-5kcal`

Text Solution

Verified by Experts

The correct Answer is:
B
`DeltaH=(2.5xx16)/(4)=-10kcal mol^(-1)`
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