Combustion is a
Combustion, with rare exceptions, is a complex chemical process involving many steps that depend on the properties of the combustible substance. It is initiated by the properties of the combustible substance. It is initiated by external factors such as heat, light and sparks. The reaction sets in as the mixture of combustibles attains the ignition temperature. Combustion terminates when equilibrium is achieved between the total heat energies of the reactants and the total heat energies of the products.