What happens to the vapour pressure of a liquid when a non-volatile solute is dissolved in it ?

What is vapour pressure of a liquid ?

Define vapour pressure of a liquid.

The vapour pressure of water is 12.3 k P_(a) at 300 K. Calculate the vapour pressure of 1 molal solution of a non-volatile solute in it.

At 20^@C , the vapour pressure of diethyl ether is 442mm. When 6.4g. of a non-volatile solute is dissolved in 50g. of ether, the vapour pressure falls to 410mm. The Molecular weight of the solute is

Calculate the vapour pressure , if 0.083 mole of a non-volatile solute is present in 80 g of ethanol at 25^@C , Vapour pressure of ethanol is 22.45 mm.

Lowering of vappour pressure of 1.00m solution of a non-volatile solute in a hypothetical solvent of molar mass 40g at tis normal boiling Point is

Define Raoult's law for lowering of vapour pressure. How is the law useful in determining the molecular weight of a solvent when a known non - volatile solute is dissolved ?

At 298 K, the vapour pressure of a solution of 7.5 g of non-volatile solute in 90 g of water is 2.8 kPa. If 18 g of water is added to this solution vapour pressure becomes solution the vapour pressure becomes 2.81 kPa at same temperature, the molar mass of solute in g mol^(-1) is