Elevation of boiling point
Jul 25, 2022, 16:45 IST
About Elevation of boiling point.
The boiling point of a liquid is the temperature at which its vapour pressure becomes equal to the external atmospheric pressure. Since the addition of a non-volatile solute lowers the vapour pressure, the vapour pressure of a solution is always lower than that of the pure solvent, and hence it must be heated to a higher temperature to make its vapour pressure equal to atmospheric pressure. Thus the solution boils at a higher temperature than the pure solvent. If is the boiling point of the solvent and Tb is the boiling point of the solution, the difference in boiling points (Tb) is called the elevation of boiling point.
Get detial expression of Elevation of boiling point.
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