2. GALVANIC CELL
• →INTRODUCTION
• →ARRANGEMENT OF GALVANIC CELL
• →DANIEL CELL
• →REPRESENTATION OF GALVANIC CELL
• →WORKING OF GALVANIC CELL
• →CONCLUSION
3. INTRODUCTION
It is important electrochemical cell.
A galvanic cell is an electrochemical cell which converts the
free energy of a chemical process into electrical energy.
It is also called as voltaic cell.
Galvanic cell was first described by Luigi Galvani.
4. ARRANGEMENT OF GALVANIC CELL
→A galvanic cell generally consists of two different metal rods called
electrodes.
→Each electrode is immersed in a solution containing its own ions and these
form a half cell.
→Each half cell is connected by a salt bridge or separated by a porous
membrane .
The solutions in which the electrodes are immersed are called electrolytes.
6. DANIEL CELL
• The first half cell consists of zinc electrode dipped
in znso4 solution and the second half cell is made
up of copper electrode dipped in copper sulphate
solution.
• Both half cells are externally connected by a
metallic conductor and internally by a bent glass
tube having saturated solution of strong
electrolyte KCL called as salt bridge.
7. REPRESENTATION AND WORKING OF
GALVANIC CELL
• The flow of electrons will be
externally from anode to
cathode and internally from
cathode to anode through the
salt bridge.
• Oxidation takes place at
anode with the liberation of
free electrons and reduction
takes place at cathode with
the reduction of cuprous ion.
8. CONCLUSION
• We conclude that current is produced when
electrons flow externally through the circuit
from anode to the cathode because of a
difference in potential energy between the two
electrodes .
