How can you justify the observation that the V.P. of solution of a non-volatile solute in a given solvent is less than that of pure solvent. Also state the law concerning the observation.

When non-volatile solute is added to a pure solvent, the:

The vapour pressure (VP) of a dilute solution of non-volatile solute is P and the VP of a pure solvent is P^(@) . The lowering of the VP is

The mole fraction of the solvent in the solution of a non-volatile solute is 0.980. The relative lowering of vapour pressure is :

State Raoult's law. Explain from it why the vapour pressure of a solution is always less than that of a pure solvent.

Relative lowering of vapour pressure of a solution containing a non volatile solute (X) in a solvent (Y) is 3%. What is the mole percentage of component 'Y' in the solution.

How is the vapour pressure of a solvent affected when a non volatile solute is dissolved in it?

The vapour pressure of a solution of a non-volatile electrolyte B in a solvent A is 95% of the vapour pressure of the solvent at the same temperature. If the molecular weight of the solvent is 0.3 times, the molecular weight of solute, the weight ratio of the solvent and solute are:

Why is boiling point of a solvent elevated upon the addition of a non-volatile solute ?

The boiling point of solution is ……..than the boiling point of pure solvent.

If a non-volatile solute is dissolved in a volatile solvent relative lowering of vapour pressure is equal to