Question

felletoiling 9: write the units of the following ~conductivity
~equivalent conductivity
~ Molar conductivity
~cell potential​

Answer 1

Answer:

(i) Specific conductivity: The specific conductivity of a solution at a given dilution is the conductance of one cm cube of the solution. It is represented by κ (kappa).

Formula:

             κ=  

ρ

1

​

=  

A

1

​

×  

R

1

​

 

Where,

            ρ= specific resistance

            l= length

            A= Area

            R= Resistance

Unit: Ohm  

−1

cm  

−1

 

(ii) Molar conductivity: At definite temperature the conductivity of ions in a solution containing one gm mole of electrolyte is called molar conductivity. It is denoted by μ or Λ  

m

​

 

Formula: Λ  

m

​

=κ×V

              Λ  

m

​

=κ×  

m

1000

​

 

where,

           Λ  

m

​

= molar conductivity

           κ= specific conductivity

           m= molarity

           V= volume =Vcm  

3

 

Unit: Ohm  

−1

cm  

2

mol  

−

Explanation: