Question

Write the dispersed phase and dispersion medium of the colloidal system- smoke.

Answer 1

Colloidal system

• A mixture in which one component is continuously dispersed across another is referred to as a colloid system.
• A colloid is a heterogeneous system in which one substance is dispersed (dispersed phase) as very fine particles in another substance called a dispersion medium.

Classification of colloidal system

(i) physical states of the dispersed phase and dispersion medium

(ii) nature of the interaction between the dispersed phase and dispersion medium

(iii) nature of particles of the dispersed phase.

Dispersed phase

The dispersed phase is the phase that is dispersed or that contains colloidal particles.

Dispersion medium

The dispersion medium is the medium in which the colloidal particles are disseminated.

Smoke:

• Smoke is a colloidal system consisting of a dispersed phase and a dispersion medium
• The dispersed phase of smoke is solid
• The dispersion medium of smoke is gas.
• Thus, this is an example of a solid in a gas colloidal system.