Final answer:
The potential chemical energy of fuel in fire behavior is converted to thermal energy.
Step-by-step explanation:
The potential chemical energy of fuel in fire behavior is converted to thermal energy.
When fuel burns, the chemical potential energy stored in the fuel molecules is released in the form of heat. This heat energy is called thermal energy. It is the main form of energy conversion in the process of combustion, generating intense heat and raising the temperature of the surroundings.