Question

Degree of dissociation $\alpha$ =

• A. $\frac{{\wedge }_m}{{\wedge }_m^{\circ }}$
• B. $\frac{{\wedge }_m^{\circ }}{{\wedge }_m}$
• C. ${\wedge }_m-{\wedge }_m^{\circ }$
• D. $\sqrt{{\wedge }_m}-\sqrt{{\wedge }_m^{\circ }}$

Answer 1

The correct option is A $\frac{{\wedge }_m}{{\wedge }_m^{\circ }}$

For weak electrolytes at any concentration degree of dissociation $\alpha =\frac{{\wedge }_m}{{\wedge }_m^{\circ }}$
${\wedge }_m\to$ molar conductivity
${\wedge }_m^{\circ }\to$ molar conductivity at infinite dilution.