How to Measure Equilibrium Constant and Limiting Molar Conductivi Notes Chapter 3 Electrochemistry Chemistry Class 12

How to measure equilibrium constant and limiting molar conductivity of week electrolytite?
Weak electrolytes like acetic acid have lower degree of dissociation at higher concentrations and hence for such electrolytes, the change in Λm with dilution is due to increase in the degree of dissociation and consequently the number of ions in total volume of solution that contains 1 mol of electrolyte. In such cases Ëm increases steeply on dilution, especially near lower concentrations. Therefore, Ëm° cannot be obtained by extrapolation of Λm to zero concentration. At infinite dilution (i.e., concentration c → zero) electrolyte dissociates completely (α =1), but at such low concentration the conductivity of the solution is so low that it cannot be measured accurately. Therefore, Ëm ° for weak electrolytes is obtained by using Kohlrausch law of independent migration of ions