where Q is the heat of combustion. In this reaction, atoms are conserved and the equation balances for each of the species. The reaction is a stoichiometric reaction, and the coefficients multiplying ...

A fuel, oxygen and heat are needed for a fire. If one of these is removed, a fire will go out. The fire triangle summarises the three things needed for combustion - a fuel, heat and oxygen.

For the fusewire the heat of combustion is 2.3 cal/cm. Measure the unburned length after the bomb is opened and correct the heat of combustion for this wire contribution.