For the same solution the elevation in boiling point has higher values than depression in freezing point.

A system of greater disorder of molecules is more probable. The disorder of molecules is reflected by the entropy of the system. A liquid vapourizes to form a more disordered gas. When a solute is present, there is additional contribution to the entropy of the liquid due to increased randomness. As the entropy of solution is higher than that of pure liquid, there is weaker tendency to form the gas. Thus, a solute (non-volatile) lowers the vapour pressure of a liquid, and hence a higher boiling point of the solution. Similarly, the greater randomness of the solution opposes the tendercy to freeze. In consequence, a lower temperature must be reached for achieving the equilibrium between the solid (frozen solvent) and the solution. The elevation in boiling point (DeltaT_(b)) and depression in freezing point (DeltaT_(f)) of a solution are the colligative properties which depend only on the concentration of particles of the solute and not their identity. For dilute solutions, (DeltaT_(b)) and (DeltaT_(f)) are proportional to the molarity of the solute in the solution. A mixture of two immiscible liquids at a constant pressure of 1.0 atm boils at temperature

What will be the molecular weight of NaCl determined experimentally following elevation in the boiling point or depression in freezing point method?

What will be the molecular weight of NaCl determined experimentally following elevation in the boiling point or depression in freezing point method?

Which solution will show maximum elevation in boiling point?

Derive the relation between elevation of boiling point and molar mass of the solute .

Which of the following will have maximum depression in freezing point ?

Elevation in boiling point of a solution of non-electrolyte in CCl_(4) is 0.60^(@)C . What is the depression in freezing point for the same solution? K_(f)(CCl_(4)) = 30.00 K kg mol^(-1), k_(b)(CCl_(4)) = 5.02 k kg mol^(-1)

Boiling point elevation is

1 m aq. Solution of a salt shows elevation in boiling point equal to 3 times of its K_(b) . Determine (i) Freezing point of solution (ii) Osmotic pressure at 27^(@)C

Which aqueous solution has minimum freezing point?