Question

Write a mathematical expression for nernst equation for daniell cell

Answer 1

Daniell’s cell consists of zinc and copper electrodes. The electrode reactions in Daniell’s cell are,

At anode :

At cathode :

Net cell reaction :

Therefore, the Nernst equation for the Daniell’s cell is,

Since, the activities of pure copper and zinc metals are taken as unity, hence the Nernst equation for the Daniell’s cell is,

The above eq. at 298 K is,

Hope this helps you ☺️☺️✌️✌️❤️❤️

Answer 2

Answer:

The Nernst equation relates the effective concentrations ( activities ) of the components of a cell reaction to the standard cell potential. For a simple reduction of the form Mn+ + ne– → M, it tells us that a half-cell potential will change by 59/n mV per 10-fold change in the activity of the ion.