Is lowering in Vapour pressure is not a colligative property?

Relative lowering in vapour pressure is the colligative property but not the lowering in vapour pressure. So, the correct answer is “Option D”.

Why is vapor pressure lowering a colligative property?

When a nonvolatile solute is dissolved in a solvent, the vapor pressure of the resulting solution is lower than that of the pure solvent. The amount of the vapor pressure lowering is proportional to the amount of solute and not its identity. Therefore, vapor pressure lowering is a colligative property.

What is Raoult’s Law of lowering of Vapour pressure lowering of Vapour pressure is a colligative property explain?

Logic and Solution: According to Raoult’s law, for dilute solutions containing non volatile solute, the relative lowering of vapor pressure, Δp/po is equal to the mole fraction of solute, X2. i.e., Δp/po = X2. It is a colligative property.

What is lowering of vapour pressure?

A reduction in the saturated vapour pressure of a pure liquid when a solute is introduced. If the solute is a solid of low vapour pressure, the decrease in vapour pressure of the liquid is proportional to the concentration of particles of solute; i.e. to the number of dissolved molecules or ions per unit volume.

Which of the following is not a colligative property vapour pressure osmotic pressure?

Elevation of Boiling Point. Depression of Freezing Point. Osmosis and Osmotic Pressure. Hence, the correct option is D.

What is lowering vapour pressure?

What is relative lowering of vapour pressure equal to?

The relative lowering of vapour pressure is equal to the mole fraction of the non – volatile solute.

What is lowering of vapour pressure of solution?

The vapor pressure of a solvent in a solution is always lower than the vapor pressure of the pure solvent. The vapor pressure lowering is directly proportional to the mole fraction of the solute. This is Raoult’s Law.

Which of the following is not a colligative property relative lowering of vapour pressure Boiling Point depression in freezing point Osmotic Pressure?

Which will show greater lowering of vapour pressure and why?

Answer Expert Verified. B will show greater lowering of vapour pressure because p°-ps/p°=w2×M1/w1M2. Here,lowering of vapour pressure(p°-ps)is directly related with amount in gram & inversely related with molar mass of non-volatile solute.