wiz-icon
MyQuestionIcon
MyQuestionIcon
2
You visited us 2 times! Enjoying our articles? Unlock Full Access!
Question

Explain Daniel cell with cell diagram representation and process taking place in the cell.


Open in App
Solution

Daniel Cell

  • Daniel cell is an electrochemical device that can convert chemical energy to electrical energy.
  • In an electrochemical cell, the anode is negative and the cathode is positive.
  • Electrons flow from anode to cathode.
  • In the daniel cell, Anode is made of Zinc(Zn) metal dipped in Zinc salt solution i.e., Zinc sulphate(ZnSO4)and the Cathode is made of Copper(Cu) metal dipped in the copper salt solution i.e., Copper sulphate(CuSO4).

Cell Diagram

  • At the anode, oxidation takes place.
  • Zn(s)Zn2+(aq)+2e-
  • At the cathode, reduction takes place
  • Cu2+(aq)+2e-Cu(s)
  • Overall, cell reaction is
  • Zn(s)+Cu2+(aq)Zn2+(aq)+Cu(s)
  • Cell representation
  • Zn(s)|Zn2+(aq)||Cu2+(aq)|Cu(s)
  • Here, the Left part is oxidation half cell and the right part is reduction half cell.
  • The double vertical lines ( || ) represent the salt bridge.

Working principle

  • The oxidation of Zinc metal at the anode produces 2electrons.
  • The electrons move from anode to cathode through a metal wire that connects the electrodes.
  • The free flow of electrons produces electricity.
  • The electricity is produced opposite to the flow of electrons i.e., cathode to anode.
  • The salt bridge completes the circuit.

Application

  • It is used to produce electricity.
  • It is also used to store electricity.
  • It is used in Battery development.

flag
Suggest Corrections
thumbs-up
10
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
CHEMISTRY
Watch in App
Join BYJU'S Learning Program
CrossIcon