Question

Which of the following statements is correct for a strong electrolyte?

• A. ${\lambda }_m$ increases linearly with $C^{1/2}$
• B. ${\lambda }_m$ increases linearly with $C^2$
• C. ${\lambda }_m$ decreases linearly with $C^2$
• D. ${\lambda }_m$ decreases linearly with $C^{1/2}$

Answer 1

The correct option is D ${\lambda }_m$ decreases linearly with $C^{1/2}$

The molar conduction of a strong electrolyte and its concentration are related to each other by the expression

${\lambda }_m={\lambda }_m^0-b\sqrt{C}$.

This is a linear relationship.

Option D is correct.