MOLAR CONDUCTIVITY

 

MOLAR CONDUCTIVITY 

• The conductivity  is defined as the conductivity of an electrolyte solution divided by molar concentration
• Molar conductivity = λ_m = κ/c
•  if k is expressed in Sm^–1 and the concentration, c in mol m^–3 then the unit of λ_m will be Sm²mol^–1.
•  If we use Scm^–1 as the units for k and mol cm^–3, the units of
•  concentration, then the units for  λ_m  are Scm²mol^–1. It can be calculated by using the equation:
•  λ_m (Scm²mol^–1) = κ(S cm^–1) × 1000 (cm³/L)/molarity (mol/L).

ž OR, 1 Sm²mol^–1 = 10⁴ Scm²mol^–1