Question

Derive the mathematical expression to show that the relative lowering of vapor pressure of a solution containing a nonvolatile solute and a volatile solvent is equal to the mole fraction of the solute.

Answer 1

Answer: Raoult's law is use to write the mathematical expression.

Explanation: according to this law the partial pressure of any volatile constituents of a solution at a constant temperature is equal to the vapour pressure of pure constituents multiplied by the mole fraction of heat constituents in the solution.