Electrochemical Cells
Electrochemical Cells: Overview
This topic covers concepts, such as, Voltaic Cell or Galvanic Cell, Electrochemical Cell, Salt Bridge & Applications of a Salt Bridge etc.
Important Questions on Electrochemical Cells
A cell, initially contains 1 M and 1 ions.
Calculate the change in the cell potential after the passage of 9.65 A of current for 1 h.

How many grams of silver could be plated out on a serving tray by electrolysis of a solution containing silver in +1 oxidation state for a period of 1.0 hours at a current of 8.46 amperes? What is the area of the tray if the thickness of the silver plating is 0.00254 cm? Density of silver is

The reaction :
occurs in the galvanic cell

The standard e.m.f. of a galvanic cell involving cell reaction with n = 2 is found to be 0.295 V at The equilibrium constant of reaction would be –

The no. of cells which may be constructed with different values for the reaction:

The first cell made in the world is _____. (Voltaic cell/ Nickel-Cadmium cells)

Galvanic cells convert electrical energy into chemical energy.

Secondary battery is a cell which can be _____ repeatedly for use. Examples are Lithium-ion battery, Lead Storage battery, etc.

Daniell cell having electrodes of zinc and copper dipping in the solutions of their respective salts, electrons flow from negative electrode to positive electrode.

Daniell cell having electrodes of zinc and copper dipping in the solutions of their respective salts, zinc electrode is acting as a cathode and copper electrode is acting as anode.

Galvanic cells converts electrical energy into chemical energy.

A variable, opposite external potential (Eext) is applied to the cell
, of potential . When and , respectively electrons flow from :

Define electrochemical cell. What happens if external potential applied becomes greater than of electrochemical cell?

In a galvanic cell, the salt bridge

Which of the following statements is false?

Explain how salt-bridge maintains the electrical neutrality of the two half cell solutions in a galvanic cell?

(a) Represent the galvanic cell based on the cell reaction given below : .
(b) Write the half cell reactions of the above cell.

What are the functions of salt bridge in a galvanic cell?

Write two points of differences between galvanic cell and electrolytic cell?

What is a Galvanic cell? Give the function of salt bridge?
