Question

Why is the boiling point elevate when a non volatile solute is dissolved in a liquid?

Answer 1

Boiling-point elevation describes the phenomenon that the boiling point of a liquid (a solvent) will be higher when another compound is added, meaning that a solution has a higher boiling point than a pure solvent. This happens whenever a non-volatile solute, such as a salt, is added to a pure solvent, such as water.

Answer 2

Answer: Boiling point is elevated when a non voilatile solute is dissolved in a liquid because addition of non volatile solute decreases the vapour pressure of the liquid. Therefore it has to be heated to higher temperature so that vapour pressure of liquid becomes equal to atmospheric pressure.

Explanation:

• Boiling point of a liquid is defined as the temperature at which the vapour pressure of liquid becomes equal to the atmospheric pressure of liquids environment.

• At boiling point liquid converts into vapour.
• Addition of solute into liquid decreases its vapour pressure. Therefore it is heated to higher temperature so that its vapour pressure becomes equal to atmospheric pressure.This phenomenon is called boiling point elevation.

• Boiling point of water is increased by about five degree centigade for every mole of particle dissolved in a litre of water.

To learn more about boiling point from the given link-

https://brainly.in/question/1145929

To learn more about atmospheric pressure from the given link-

https://brainly.in/question/27308569

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