What kind of energy does Fossil fuels such as gas oil and coal have?

Fossil fuels like gas, oil, and coal contain chemical energy, which is stored in the bonds of their hydrocarbon molecules. When burned, this chemical energy is converted into thermal energy (heat) through combustion, which can then be utilized to produce electricity, power vehicles, or heat spaces. This process releases carbon dioxide and other greenhouse gases, contributing to climate change. Ultimately, fossil fuels are a significant source of energy worldwide, despite their environmental impact.