Question

what is the overall energy transformation in a coal - fired power plant?
electrical to chemical
chemical to electrical
nuclear to radiant
radiant to nuclear

Explanation:

In a coal - fired power plant, coal has chemical energy. When it burns, this chemical energy is converted into heat energy which is used to produce steam. The steam drives a turbine - generator system to generate electrical energy. So the overall energy transformation is from chemical energy in coal to electrical energy.

Answer:

chemical to electrical