Difference between Electrochemical and Electrolytic cells

Download

What is the difference between Electrochemical and Electrolytic cells?

Answer: Electrochemical and Electrolytic cells, Electrochemical and Electrolytic cells

Electrochemical cell

• It converts chemical energy (of a redox reaction) into electrical energy.
• At the electrodes, a spontaneous redox reaction takes place.
• It makes the electrodes of dissimilar metals.
• Each electrode is dipped in an electrolytic solution of its own ions.
• A Salt bridge is used.
• An anode is a negative electrode, and a cathode is a positive electrode of the cell.

Electrolytic cell

• It converts electrical energy (from an external source) into chemical energy.
• At the electrodes, a non‐spontaneous redox reaction takes place only when electrical energy is supplied.
• It may make the electrodes of the same or different metals.
• Both the electrodes are inserted in the same electrolyte solution.
• The salt bride is not used.
• The anode is a positive electrode, and the cathode is the negative electrode of the cell.