Before we understand the definition of Kohlrausch's law, let us an example of acetic acid and sodium chloride, CH3COOH is a weak acid and does not completely dissociate into its ions. But on the other hand, sodium chloride is a strong electrolyte and completely dissociates into its ions. We have a solution for a strong electrolyte in a beaker.
In the solution of 1 litre, on passing electricity, the movement of ions made conduction possible but the negative effect occurs due to the attraction between oppositely charged sodium and chloride ions in a solution. if we add more water and dilute the solution from 1 litre to 3 litres, the distance between sodium and chloride ions will increase and thus attraction decrease.
"more dilute the solution, means infinite dilution, ions far apart and less attraction between cation and anions, thus more the conduction"
It means at infinite dilution, the conduction will be maximum.
What is Kohlrausch's Law?
At infinite dilution, each ion migrates independently of its co-ion and contributes a definite share to the total equivalent conductance of the electrolyte
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