Adsorption and Absorption Concepts

The video tutorial explains the concepts of absorption and adsorption, highlighting their differences. Absorption involves a substance being fully integrated into another medium, forming a solution, while adsorption involves molecules sticking to the surface of a solid or liquid. The video provides examples of each process and discusses practical applications of adsorption, such as in deodorizing air and using activated charcoal in gas masks.

What is the best way to remove a tea spill immediately?

• Use a towel

• Use a newspaper

• Use a tissue paper

• Use a sponge

Which of the following is an example of absorption?

• Charcoal attracting dye particles

• Perfume being absorbed by skin

• Dust settling on a surface

• Water droplets on a leaf

What happens to molecules during adsorption?

• They stick to the surface

• They dissolve completely

• They evaporate

• They penetrate the medium

Which process involves molecules being loosely held on a surface?

• Condensation

• Adsorption

• Evaporation

• Absorption

How can the process of adsorption be reversed?

• By cooling

• By adding more liquid

• By shaking or warming

• By compressing

Which of the following is NOT a characteristic of absorption?

• It is usually irreversible

• It involves surface interaction

• It saturates the medium

• It forms a solution

What happens to the red dye when a charcoal pellet is added to the jar?

• It sticks to the charcoal

• It evaporates

• It changes color

• It dissolves completely

Which process is more likely to be temporary and reversible?

• Condensation

• Evaporation

• Adsorption

• Absorption

What is a common use of activated charcoal in gas masks?

• To humidify the air

• To cool the air

• To attract toxic gas molecules

• To filter dust

Which of the following is an application of adsorption?

• Absorbing water in a sponge

• Deodorizing air in a refrigerator

• Dissolving sugar in water

• Melting ice