Question

How does solute affect boiling point?

Answer 1

Hint: First of all we should talk about the boiling point and also about the solution, solute and solvent. The temperature at which the pressure exerted by the surrounding upon a liquid is calculated by the pressure exerted by the vapor of the liquid. Under such conditions when the addition of heat results in the transformation of liquid into the vapor form without raising the temperature is termed as the Boiling point.

Complete step-by-step answer:
The substance that is being dissolved is termed as the solute, while the medium in which the solute is dissolved is termed as the solvent. The solution consists of both solute and the solvent.

General properties of solution
-Homogeneous mixture of two or more substances, is generally termed as solution.
-Solute particles in a solution are invisible to naked eye.
-A beam of light is not scattered through the solution.
-Solution is generally stable.
-By using the filtration process, we are unable to extract solute particles from the solution.

The effect in boiling point due to solute:
The vapor pressure of the solvent is generally lower than that of a solute which is being added to it. This is because of the displacement of the solvent molecules by solute particles. For equalizing the vapor pressure to atomic pressure, higher temperature is required, hence we observed a higher boiling point.

Note: The most common example which explains all the three terms is – When sugar is mixed with water, generally it forms the sugar solution. In this example, the solute is sugar, water is solvent while sugar solution is a solution.