Question

which form of conversion of energy in burning of fuel​

Answer 1

A coal-fired power plant involves these energy transformations:

Chemical energy in the coal is converted into thermal energy in the exhaust gases of combustion

Thermal energy of the exhaust gases converted into thermal energy of steam through heat exchange

Thermal energy of steam converted to mechanical energy in the turbine

Mechanical energy of the turbine converted to electrical energy by the generator, which is the ultimate output