Raoult's Law
Raoult's Law: Overview
This Topic covers sub-topics such as Raoult's Law, Applications of Raoult's law, Mole Fraction in Vapour Phase, Vapour Pressure of Solutions of Solids in Liquids and, Raoult's Law for a Solution Containing a Non-Volatile Solute in a Liquid
Important Questions on Raoult's Law
Under what condition Henry's law becomes special case of Raoult's Law?

For a binary ideal liquid solution, the variation in total vapour pressure versus composition of solution is given by which of the curves?

An aqueous solution is made by dissolving of glucose in of water at . If the vapour pressure of pure water at is , what would be the vapour pressure of the solution?

What changes occurs in the vapour pressure as a non-volatile solute is added to a pure liquid solvent?

Two liquids are mixed together to form a mixture which boils at same temperature and their boiling point is higher than the boiling point of either of them, so they show _____ from Raoult's law.

The vapour pressure of the solution is affected by adding the _____ solute.

When will the vapour pressure of the volatile liquid lowered?

The vapour pressure of water is at . Now, calculate the vapour pressure of molar solution of a solute in it.

_____ law which states that for a solution of volatile liquids, the partial vapour pressure of each component of the solution is directly proportional to its mole fraction present in solution.

The following is a graph plotted between the vapour pressure of two volatile liquids against their respective mole fractions.
Which of the following statement is correct ?

For a dilute solution containing of a non-volatile non-electrolyte solution in of water, the elevation in boiling point at pressure is Assuming the concentration of solute is much lower than the concentration of the solvent, the vapor pressure of the solution is ()

Two liquids and form an ideal solution. At , vapour pressure of the solution containing mole of and mole of is . At the same temperature, if mole of is further added to this solution, vapour pressure of the solution increases by . Vapour pressure (in ) of and in their pure states will be, respectively

The vapours pressure of pure components and are and respectively. Assuming a solution of these components obeys Raoult's law, the mole fraction of component in the vapours phase in equilibrium with a solution containing equimolecular of and is

of urea is dissolved in of water. Calculate the vapour pressure of water for this solution if vapour pressure of pure water at is .

Which of the following units is most useful in relating concentration of solution with its vapour pressure?

When partial pressure of solvent in solution of non-volatile solute is plotted against its mole fraction, nature of graph is

Partial pressure of solvent (mole fraction) in solution of non-volatile solute (mole fraction) is given by equation,

Explain the determination of molar mass of a solute from relative lowering in vapour pressure.

In an equilibrium at with a benzene-toluene solution, the mole fraction of benzene is 0.400, then, what is the mole fraction of toluene in vapour phase?

