Electrolysis of an nacl solution with a current of 2.00 a for a period of 200 s produced 59.6 ml of cl2 at 650 mm pressure and 27° c. calculate the value of the faraday from these data.

0.00415F

Explanation:

Given parameters:

Current in the solution = 2A

Time = 200s

Volume of chlorine gas = 59.6mL

Pressure = 650mmHg

Temperature = 27° C

Unknown parameter:

The faraday which is the quantity of electricity used = ?

Solution:

The quantity of electricity used in the reaction is derived from the product of the current passed through the solution and time duration. It is expressed in  coulombs.

      Q = I x t

where I is the current

           t is the time

       Q = 2 x 200 = 400coulombs

One faraday is the quantity of electricity produced by one mole of electrons:

      1Faraday = 96500 coulombs

   Therefore 400coulombs gives = 0.00415F