what are sources of chemical energy

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What are the sources of chemical energy?Combustible Liquid Fuels. Fossil fuels such as gas and methane are some of the most important forms of chemical energy in the world’s economy.Food.Explosives.Batteries.Photosynthesis.Respiration.Cold Packs.Coal.

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Wood is an easily available source of chemical energy. Since ancient times, wood has been burnt to give out heat and energy. The wood decomposes to produce chemical energy. Coal The most basic source of chemical energy is coal. Coal is formed when excessive heat and pressure under the Earth surface act upon rocks for millions of years.

Any substance that can be used as a fuel contains chemical energy. Examples of matter containing chemical energy include: Coal: Combustion reaction converts chemical energy into light and heat. Wood: Combustion reaction converts chemical energy into light and heat.

natural gas – combustion reaction converts chemical energy into light and heat. food – digested to convert chemical energy into other forms of energy used by cells. cold packs – chemical energy is absorbed in a reaction. propane – burned to produce heat and light.

It can be chemical energy, electrical energy, heat/ thermal energy, mechanical energy, nuclear energy, and energy in the form of electromagnetic radiation i.e. light. Sources of energy contain energy in them if forms that cannot be used directly but living organisms require energy to stay alive.