Step 1: Understanding Colligative Properties Colligative properties depend only on the number of solute particles in a solution, not their identity. The four main colligative properties are Relative lowering of vapor pressure Boiling point elevation Freezing point depression Osmotic pressure Since surface tension is not influenced by the number of solute particles but by intermolecular forces, it is not a colligative property.
State Raoult's law related to lowering of vapour pressure. Calculate the vapour pressure of pure water at 293 K temperature when 25 g of glucose is dissolved in 450 g of water. Vapour pressure of pure water at 293 K temperature is 1535 mmHg.