When fossil fuels are burned, chemical potential energy is released.
Fossil fuels are a source of energy that comes from the catabolism of the organic matter of plants, animals and microorganisms that goes through processes of increases in pressure and temperature and its transformation process into fuel takes millions of years. This process generates what we know as coal, oil or natural gas, which are substances with a high energy content.
What happens when these fossil fuels are burned? When fossil fuels are burned, carbon and hydrogen react with oxygen producing carbon dioxide, this reaction generates heat and this whole process translates into a potential chemical energy that can be used in different things such as electricity generation.
Therefore, we can confirm that when fossil fuels are burned, chemical potential energy is released.
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