The complete combustion of 1 mole of nitrobenzene,C₆H₅NO₂,in a bomb calorimeter liberates 3088 kJ of heat and increases the temperature of the calorimeter assembly by 140.0 °C.What is the heat capacity of this bomb calorimeter? A)1.25 kJ/ °C B)4.53 kJ/ °C C)22.1 kJ/ °C D)432 kJ/ °C E)43.1 kJ/ °C

Question

Quizplus · Accepted Answer

The heat capacity of the bomb calorimeter is given by: 
Ccal = Q/ΔT 
where Q is the heat released by the combustion of nitrobenzene and ΔT is the increase in temperature of the calorimeter.

From the problem, Q = 3088 kJ and ΔT = 140.0 °C. Therefore, 
Ccal = 3088 kJ / 140.0 °C = 22.1 kJ/ °C

Thus, the correct answer is (C).

The Complete Combustion of 1 Mole of Nitrobenzene,C6H5NO2,in a Bomb

The Complete Combustion of 1 Mole of Nitrobenzene,C₆H₅NO₂,in a Bomb