What is colligative property? Define osmotic pressure.

What are colligative properties?

What is colligative property? Give example?

What is osmotic pressure.?

Addition of non-volatile solute to a solvent always increases the colligative properties such as osmotic pressure. Delta P . Delta T_b and Delta T_f . All these colligative properties are directly proportional to molality if solutions are dilute. The increases in colligative properties on addition of non-volatile solute is due to increases in number of solute particles. For different aqueous solutions of 0.1 N NaCI, 0.1 N urea, 0.1 N Na_2SO_4 and 0.1 N Na_3PO_4 solution at 27^@C , the correct statements are : 1. The order of osmotic pressure is NaCI = Na_2SO_4 = Na_3PO_4 = urea 2. pi = (Delta T_b)/k_b xx RT for urea solution 3. Addition of salt on ice increases its melting point 4. Addition of salt on ice bring in melting of ice earlier

Which one is a colligative property ?

Colligative property is 1.Osmotic pressure 2. Vapour pressure 3.Cohesion force 4.Surface tension

This question has statement I and II. Of the four choices given after the statements, choose the one that best describes the two statements. Statement - I : Osmotic pressure is a colligative property. Statement -II : Osmotic pressure developed in a column due to osmosis.

Which colligative property is most suitable for the determination of molecular masses of polymer?