First slide

Debye - Huckel equation

Question

For which case $λ$ values v/s $\sqrt{C}$ shows a straight line

Easy

A

KCl
B

HCOOH
C

CH₃NH₂
D

CH₃COOH

Solution

Debye -Huckel Onsager equation
${\lambda _c} = {\lambda _0} - A\sqrt C$
A is constant depends on valency of electrolyte.
Strong electrolytes undergo complete ionization ,the maximum equivalent conductance is called Equivalent conductance at infinite dilution.
But weak electrolyte can never completely ionise so it is not possible to determine 'λ₀' for weak electrolytes directly.
So for weak electrolytes
KCl is strong electrolyte . straight line is obtained.

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