What is elevation in boiling point ? Explain.

Explanation

The temperature at which, the vapour pressure of solvent or solution is equal to the atmospheric pressure, such temperature is known as boiling point of such solvent or solution.
For example, water boils at 373.15 K `(100^(@)C)` because at this temperature the vapour pressure of water is 1.013 bar (1 atmosphere).
For example, the vapour pressure of an aqueous solution of sucrose is less than 1.013 bar at 373.15 K.
In order to make this solution boil, its vapour pressure must be increased to 1.013 bar by raising the temperature above the boiling temperature of the pure solvent (water).