Question

why the energy in the coal is called as chemical energy

Answer 1

Because to obtain energy from coal, the coal must undergo chemical reaction with oxygen

Answer 2

Chemical Energy is energy stored in the bonds of chemical compounds (atoms and molecules). It is released in a chemical reaction, often producing heat as a by-product (exothermic reaction). Batteries, biomass, petroleum, natural gas, and coal are examples of stored chemical energy.

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