Class 12 Chemistry Electrochemistry Kohlrausch law

Kohlrausch law of independent migration of ions

  • The Kohlrausch law of independent migration of ions states that limiting molar conductivity of an electrolyte can be represented as the sum of the individual contributions of the anion and cation of the electrolyte.

  • Limiting equivalent molar conductivity of an electrolyte is the algebraic sum of limiting molar equivalent conductivities of its constituent ions.

  • Mathematically,

Where λo+ = limiting equivalent conductivities of cation

λo- = limiting equivalent conductivities of anion.

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