Question

What is molal depression constant doest it depend on nature of the solute

Answer 1

it is defined as the equal to elevation in boiling point when molality of the solution is 1.

Answer 2

Answer :

Molal depression constant : It is defined as the depression in freezing point when the molality of the solution is unity, i.e., one mole of the solute is dissolved in 1000 gram or 1 kilogram of the solvent.

The expression for the depression in freezing point is,

$\Delta T_f=K_f\times m$

where,

$\Delta T_f$ = depression in freezing point

$K_f$ = molal depression constant

m = molality of the solution

Molality : It is defined as the number of moles of solute present in 1 kilogram of solvent.

The unit of molal depression constant is, K kg/mole

The molal depression constant does not depend on the nature of the solute. It is depends on the nature of the solvent.