Key Concepts: Colligative Properties

Core Definitions

• Colligative Properties: Properties that depend on the number of solute particles, not their identity.
• Boiling Point Elevation: Adding solute raises the boiling point of a solution above that of the pure solvent.
• Freezing Point Depression: Adding solute lowers the freezing point of a solution below that of the pure solvent.
• Osmotic Pressure: Pressure required to prevent osmosis across a semipermeable membrane.