Question

Which among the following is the correct sequence of transformation of energy in a thermal power plant?

• A. Heat energy $\to$ Chemical energy $\to$ Electrical energy
• B. Electrical energy $\to$ Heat energy $\to$ Chemical energy
• C. Chemical energy $\to$ Heat energy $\to$ Electrical energy
• D. Chemical energy $\to$ Electrical energy $\to$ Heat energy

Answer 1

The correct option is C Chemical energy $\to$ Heat energy $\to$ Electrical energy

In a conventional thermal power plant chemical energy from the coal is converted into heat energy, which in turn is converted into electrical energy. In a thermal power plant, energy is extracted through coal ignition. Hence, chemical energy of coal is used to heat water which is converted to steam. This heated steam is sent to the turbine to generate electrical energy.