The bomb calorimeter is used to completely burn substances
in an excess of oxygen. The heat of combustion released is absorbed
by the calorimetric vessel in which the bomb is immersed, and
results in a temperature increase ΔT. The heat
capacity of the system is first determined by adding a defined
amount of heat from the combustion of benzoic acid. The combustion
of the naphthalene is subsequently performed under the same
- Good and reproducible results due to temperature control in the experiment.
- Only a small amout of chemicals is need for the experiment due to the good heat capacity of the calorimeter.
- Determine the enthalpy of combustion of naphtalene using a bomb
- Calculate the enthalpy of formation of naphthalene from the
enthalpy of combusting unsing Hess' law.
What you can learn about
- First law of thermodynamics
- Hess' law of constant heat summation
- Enthalpy of combustion
- Enthalpy of formation
- Heat capacity
- Precision balance 620g/0.001g
- Precision balance 6200g/0.01g