When electricity is produced from coal, the chemical energy in coal is first changed to what type of energy?

1 Answer
Mar 5, 2017

See below.


Coal burning generates thermic energy (heat) and luminous energy (light). The luminous energy is wasted but the the heat is used to boil a liquid.

This liquid gets heated, becomes a gas and start floating upwards (kinetic energy - movement), moving a fan strategically placed along the way.

This fan moves magnets, and a change in the magnetic field creates current, thus changing that kinetic energy into electric energy.