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In the combustion of 0.4 g. of CH(4) 0.2...

In the combustion of 0.4 g. of `CH_(4)` 0.25 Kcal. Of heat is liberated. The heat of combustion of `CH_(4)` is

A

2.5 kcal

B

5 kcal

C

10 kcal

D

15 kcal

Text Solution

Verified by Experts

The correct Answer is:
C
Molecular weight of methane `CH_(4)=16`
Heat liberated in combustion of 4 g of `CH_(4)=2.5` kcals
`therefore` Heat liberated in combustion of 16 g of
`CH_(4)=(2.5)/(4)xx16=10` kcals
`therefore Delta H_(c)" of "CH_(4)=10` kcals
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