Question

Which of the following is correct regarding electrochemical cell?

• A. A device that convert electrical energy into chemical energy
• B. A device that convert chemical energy into electrical energy
• C. A device that convert mechanical energy into electrical energy
• D. (a) and (b) above.

Answer 1

The correct option is D (a) and (b) above.

The devices that convert electrical energy into chemical energy or vice versa​ is called electrochemical cell.
Example: ​A battery is a electrochemical cell.
It takes the energy released by a spontaneous chemical reaction and​ uses it to produce electricity.​