Calculate the e. m.f of a cell if 0.01M solution of each of Cd2+ and Ag+ are used?

1.20 V

Explanation:

The concentration of both solutions as stated in the question is 0.01M

However, based of reduction potential; Cd^2+= -0.40V and Ag^+= 0.80V. Silver will be the cathode while cadmium will be the anode.

Hence

E°cell= E°cathode - E°anode

E°cell= 0.80-(-0.40)= 1.20 V

But n=2 moles of electrons

From Nernst Equation:

E= E°cell - 0.0592/n log [Red]/[Ox]

E= 1.20 - 0.0592/2 log (0.01/0.01)

E= 1.20 V

the molecules move in straight line until they collide with each other or with the walls of the container. collisions are perfectly elastic; when two molecules collide, they change their directions and kinetic energies, but the total kinetic energy is conserved.

explanation: