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One gram sample of NH(4)NO(3) is decompo...

One gram sample of `NH_(4)NO_(3)` is decomposed in a bomb calorimeter. The temperature of the calorimeter increases by `6.12K` . The heat capacity of the system is `1.23KJ//g//deg` . What is the molar heat of decomposition for `NH_(4)NO_(3)` ?

A

`-7.53KJ//mol`

B

`398KJ//mol`

C

`-16.1KJ//mol`

D

`-602KJ//mol`

Text Solution

Verified by Experts

The correct Answer is:
B
Heat evolved `=1.23xx6.12`
`:.` Molar heat capacity `=1.23xx6.12=7.5276`
Molar heat of decomposition =-7.53KJ//mole
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