Question

All ________ properties of solution are related with decreasing in vapour pressure.

Hint:

This theorem also proves that \(OP\) bisects the angle between the two tangents (\(\angle APB\)) and the angle between the two radii (\(\angle AOB\)).

Answer 1

Concept:
When a non-volatile solute is added to a solvent, the vapour pressure of the solution decreases. This lowering of vapour pressure leads to several related properties known as colligative properties.
Colligative Properties:
Colligative properties are those properties of solutions that depend only on the number of solute particles present, not on their nature.
Examples of Colligative Properties:

Lowering of vapour pressure
Elevation of boiling point
Depression of freezing point
Osmotic pressure All these properties arise due to the decrease in vapour pressure when solute is added. \[ \boxed{\text{Answer: Colligative}} \]