Colligative properties are properties that depend only on the number of solute particles present, not on the nature or type of those particles.
The phenomenon where the boiling point of a liquid will be higher when something else is added to it.
The decrease in freezing point experienced by a solution compared to its pure solvent.
Osmotic Pressure: The pressure required to prevent osmosis into a given solution when it is separated from pure solvent by a semipermeable membrane.