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:

Coal stores chemical energy. In a coal-fired plant, coal is burned to release this chemical energy, which is converted through a series of steps (heat to mechanical energy, then mechanical to electrical) into usable electrical energy. The overall transformation starts with chemical energy in coal and ends with electrical energy output.

Answer:

chemical to electrical