The combustion of exactly 1.000 g of benzoic acid in a bomb calorimeter releases 26.38 kJ of heat. If the combustion of 0.550 g of benzoic acid causes the temperature of the calorimeter to increase from 22.01∘C to 24.27∘C, calculate the heat capacity of the calorimeter.

Cv=6.41 KJ/°C

Explanation:

Given that

1 g of benzoic acid release 26.38 KJ

So 0.55 g will release 26.38 x 0.55 KJ = 14.509 KJ

We know that

q = Cv ΔT

Where

q=Heat

Cv = Heat capacity

ΔT=Temperature difference

Now by putting the values

14.509 = Cv (24.27 - 22.01)

Cv=6.41 KJ/°C

So the heat capacity of bomb calorimeter is 6.41 KJ/°C.