Which energy transformation occurs first in a coal-burning power plant?

Which energy transformation occurs first in a coal-burning power plant?

Thermal energy to mechanical energy

Mechanical energy to electrical energy

Thermal energy to electrical energy

Chemical energy to thermal energy

The energy transformation that occurs first in a coal-burning power plant is "Chemical energy to thermal energy." This is because when coal is burned, the chemical energy stored in the coal is released as heat energy or thermal energy.