Difference between Electrolytic and Galvanic Cells

Electrolytic and galvanic cells are two types of electrochemical cells, but they operate in opposite ways:

1. Galvanic (Voltaic) Cells:
   • These cells convert chemical energy into electrical energy.
   • They have spontaneous redox reactions that generate an electric current.
   • An example is a standard battery, like a AA or AAA battery.
2. Electrolytic Cells:
   • These cells convert electrical energy into chemical energy.
   • They require an external power source to drive the non-spontaneous redox reactions.
   • An example is the electrolysis of water to produce hydrogen and oxygen gas.

In summary, galvanic cells generate electricity through spontaneous reactions, while electrolytic cells require an external power source to drive non-spontaneous reactions. Both types of cells have important applications in different fields.