Question

Give reason dry cell is an irreversible cell? help

Answer 1

The dry cell is actually a modification of Leclanche cell. A dry cell is primary cellbecause electrical energy is generated within the cell itself. It is an irreversible cell as cell reaction doesn't reverse if higher external emf is applied to it. Since it doesn't contain any liquid it is called the dry cell.

Answer 2

hiii mate


hope this help you


A cell is said to be reversible if the following two conditions are fulfilled:

(i) The chemical reaction of the cell stops when an exactly equal external emf is applied.

(ii) The chemical reaction of the cell is reversed and the current flows in opposite direction when the external emf is slightly higher than that of the cell.

Any other cell, which does not obey the above two conditions, is termed as Irreversible.