how is the energy stored in coal

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  • How is coal used to generate electricity?

  • Harnessing coal (stored chemical energy) to generate electricity. Coal stored in a reservoir is fed into a bunker (boiler). Here, it is burned at extremely high temperatures. Burning releases the chemical energy in the coal in the form of extreme heat (thermal energy).

  • What type of energy is stored in fossil fuels?

  • The energy in fossil fuels (coal, oil, gas) is Chemical Potential Energy. Fossil fuels come from decayed living matter that has stored energy in its chemical bonds (bonds of atoms and molecules). Coal, petroleum, natural gas, and propane are examples of fossil fuels that store chemical energy.

  • How is coal formed?

  • If you wonder how is coal formed, the energy in coal comes from the energy stored by plants that lived hundreds of millions of years ago when the earth was partly covered with swampy forests. For millions of years, a layer of dead plants at the bottom of the swamps was covered by layers of water and dirt, trapping the energy of the dead plants.

  • What type of energy is released when coal is burnt?

  • When coal is burnt, these components burn and release energy. The energy released is by the chemical reaction between the constituents and oxygen . The energy stored is in the form of chemical energy.

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