Q. A galvanic cell has electrical potential of . If an opposing potential of is applied to this cell, what will happen to the cell reaction and current flowing through the cell ?

 4239  190 Electrochemistry Report Error

Solution:

If an external potential of is applied to the cell, the reaction stops and no current flows through the cell. Any further increase in external potential again starts the reaction but in opposite direction and the cell functions as an electrolytic cell.