Burning fuels such as hydrocarbons are useful because it releases light and it is said to be an exothermic reaction.
What is a hydrocarbon?
A hydrocarbon is an organic compound consisting of hydrogen and carbon found in crude oil, natural gas, and coal.
Hydrocarbon fuels like methane ([tex]CH_4)[/tex] burn in the presence of oxygen to produce carbon dioxide and water. This process of combustion releases energy.
When energy is released during the course of a chemical reaction, it is said to be an exothermic reaction.
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