Chemistry

Problem

One g sample of

NH_4NO_3

is decomposed (

NH_4NO_{3(s)} \to N_2O_{(g)} + 2H_2O_{(g)}

) in bomb calorimeter. The temperature of calorimeter increases by

6.12

K. The heat capacity of system is

1.23

kJ/g

^\circ

. The molar heat of decomposition is: a.

-7.5

kJ b.

+7.5

kJ c.

-16.1

kJ d.

+16.1