Question

25. Define the following terms:
(i) Dispersed phase
(ii) Dispersion medium
(iii) Saturated solution
(iv) Brownian movement
(v) Solvent​

Answer 1

Explanation:

(i) The solute like component of the dispersed particles in a colloid, form the dispersed phase.

(ii) The component in which the dispersed phase is suspended is known as the dispersion medium.

(iii) A solution in which no more solute particles can dissolve is called saturated solution.

(iv) The random movement of microscopic particles suspended in a liquid or gas, caused by collisions between these particles and the molecules of the liquid or gas. This movement is named for its identifier, Scottish botanist Robert Brown.

(v) A solvent is a molecule that has the ability to dissolve other molecules, known as solutes. A solvent can be solid, liquid or gas. Heat or another chemical process must be applied to the solution to separate the solvent and solute.

Answer 2

Answer:-

1. Dispersed Phase:-

➙The Phase that is dispersed or present in

colloidal particle shape is called the

dispersed phase.

➙If a colloidal solution is compared to an ordinary solution,then dispersed phase is comparable to the solute.

Example:-

➙starch represents the dispersed phase in a starch solution.

2. Dispersion Medium:-

➙The medium in which the colloidal particles are dispersed is called dispersed phase.

Hint:-

➙dispersed medium is that substance,on which another substance is dispersed or spread on it.

Example:-

➙smoke,dust,cheese and butter etc.

3. Saturated Solution:-

➙A Saturated solution is a chemical solution containing the maximum concentration of a solute dissolved in the solvent.

variables of Saturated Solution:-

Temprature:-

➙the temperature improves the solubility.

Pressure:-

➙Increasing pressure in the fluid can force more solvent.

Example:-

➙saturated carbon dioxide solution in water is soda.

4. Brownian Movement:-

➙The continuos zig-zag movement of the colloidal particles in a colloidal solution is called brownian movement.

➙This helps in determining the charge present on the colloid.

Example:-

➙Diffusion.

5. Solvent:-

➙A solvent is a chemical substance that dissolve another chemical substance or substances to form a solution of homogenous mixtures

Hope this helps uh ♡~