What is a Daniell Cell ?

What is a Daniell Cell ?

Daniell Cell Definition

A Daniell Cell is defined as an improved version of the Voltaic Cell that prevents polarization by converting chemical energy into electrical energy.

Construction of Daniell Cell

The cell consists of a copper container with copper sulfate solution and a porous pot filled with diluted sulfuric acid containing a zinc rod.

Oxidation and Reduction

Oxidation occurs at the zinc rod (cathode), forming zinc sulfate, while reduction occurs at the copper container (anode), depositing copper.

Ion Movement

Hydrogen ions move through the porous pot to form sulfuric acid in the copper sulfate solution, facilitating continuous cell reactions.

Avoiding Polarization

The Daniell Cell prevents hydrogen gas buildup on the anode by converting it into sulfuric acid, ensuring efficient operation.