Question

A 2.741 g sample of a new organic material is combusted in a bomb calorimeter. the temperature of the calorimeter and its contents increase from 24.33 °c to 28.60 °c. the heat capacity (calorimeter constant) of the calorimeter is 25.57 kj/°c, what is the heat of combustion per gram of the material?

Answer 1

(the heat bomb calorimeter gained)=(the heat material A gave)
r.h.s=25.57 kJ/⁰C * (26.80-24.33)= 63.16 kJ
2.741g of material A made 63.16kJ
the heat of combustion per gram = 63.16/2.741 kJ/g =24.04kJ/g