A bomb calorimeter, or constant volume calorimeter, is a device often used to determine the heat of combustion of fuels and the energy content of foods. Since the "bomb" itself can absorb energy, a separate experiment is needed to determine the heat capacity of the calorimeter. This is known as calibrating the calorimeter. In the laboratory a student burns a 0.409 g sample of anthracene
(C_(14)H_(10))
in a bomb calorimeter containing 1110 g of water. The temperature increases from
24.80\deg C
to
27.80\deg C
. The heat capacity of water is
4.184(J)/(g*C)
. The molar heat of combustion is -7067 kJ per mole of anthracene.
C_(14)H_(10)(s) (33)/(2)O_(2)(g)->14CO_(2)(g) 5H_(2)O(l) Energy