MCQ
One gram sample of $N{H_4}N{O_3}$ is decomposed in a bomb calorimeter. The temperature of the calorimeter increases by $ 6.12\, K$  the heat capacity of the system is  $1.23\, kJ/g/deg.$  What is the molar heat of decomposition for $N{H_4}N{O_3}$ ......$kJ/mol$
  • $-7.53 $
  • B
    $-398.1$
  • C
    $-16.1$
  • D
    $-602$

Answer

Correct option: A.
$-7.53 $
(a)Molecular weight of $N{H_4}N{O_3} = 80$
Heat evolved $ = 1.23 \times 6.12$
$\therefore $Molar heat capacity $ = 1.23 \times 6.12 \times C$.

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