Electrochemistry In 120 Mins - Class 12 Boards Chemistry

Electrochemistry: Principles, Cells, and Conductance

Interconversion of Chemical and Electrical Energy Electrochemistry deals with the interconversion between chemical energy and electrical energy. This interconversion occurs in devices called electrochemical cells, which are of two main types: galvanic (voltaic) cells and electrolytic cells.

Galvanic/Voltaic Cell: Chemical energy is...

In the above figure, the working principle of applying an external potential (E_ext) opposite to the cell potential in a Daniel cell is presented. Which of these statements is valid for it?

<p style="text-align: justify;">Zinc gets deposited on the zinc electrode and copper dissolves from the copper electrode.</p>

In a galvanic cell:

<p style="text-align: justify;">chemical reaction produces electrical energy </p>

In the above figure, the working principle of applying an external potential (E_ext) opposite to the cell potential in a Daniel cell is presented. Which of these statements is valid for it?

<p style="text-align: justify;">Zinc gets deposited on the zinc electrode and copper dissolves from the copper electrode.</p>

In a galvanic cell:

<p style="text-align: justify;">chemical reaction produces electrical energy </p>