(a) Osmosis: The spontaneous movement of the solvent molecules either from the pure solvent to the solution or from a less concentrated solution to a more concentrated solution through a semi-permeable membrane.
Osmotic Pressure: The minimum excess pressure that has to be applied on the solution to prevent the passage of solvent molecules into it through semipermeable membrane is called osmotic pressure. Osmotic pressure is a colligative property as it depends on the number of moles of solute particles and not on their identity.
Therefore, boiling point of aqueous solution
= 373.15K + 1.05 K
= 374.20 K
