Question

What are aerosols? Give examples.

Answer 1

Aerosols

• Depending upon whether the dispersing medium and dispersed phase are gas, liquid, or solid, eight types of colloidal systems are possible.
• When the dispersed phase is liquid or solid, and the dispersing medium is gas, then the colloids formed are referred to as aerosols.

Examples

• Fog and mist are examples of aerosols where the dispersed phase is liquid and the dispersing medium is gas.
• Smoke and automobile exhaust are examples of aerosols where the dispersed phase is solid and the dispersing medium is gas.