Adsorption vs Absorption Concepts

The video tutorial explains the difference between adsorption and absorption. Adsorption is a surface phenomenon where atoms, molecules, or ions adhere to the surface of a material, like activated carbon. In contrast, absorption involves these particles entering into the bulk of a substance, such as a sponge or the human digestive system. The tutorial uses analogies like advertisements on surfaces and food absorption in the abdomen to help remember these concepts. Examples include water filters for adsorption and paper towels absorbing water for absorption.

What is the primary characteristic of adsorption?

• It occurs within the bulk of a material.

• It involves chemical reactions.

• It is a surface phenomenon.

• It requires high temperatures.

Which of the following is an example of adsorption?

• Oxygen entering the bloodstream.

• Sugar dissolving in tea.

• Water soaking into a sponge.

• Mercury being removed from water by activated carbon.

How can you remember the concept of adsorption?

• Think of food being digested.

• Think of advertisements on surfaces.

• Think of gases dissolving in liquids.

• Think of a sponge soaking up water.

What is the primary characteristic of absorption?

• It is a reversible process.

• It involves the bulk phase of a material.

• It requires a catalyst.

• It occurs on the surface of a material.

Which of the following is an example of absorption?

• Activated carbon removing toxins from air.

• Paper towels soaking up water.

• Dust settling on a surface.

• Paint sticking to a wall.

How can you remember the concept of absorption?

• Think of gases sticking to surfaces.

• Think of your abdomen absorbing nutrients.

• Think of a sponge soaking up water.

• Think of advertisements on surfaces.

What is a key difference between adsorption and absorption?

• Adsorption involves chemical reactions, absorption does not.

• Adsorption requires high temperatures, absorption does not.

• Adsorption is faster than absorption.

• Adsorption is a surface phenomenon, absorption involves the bulk phase.

Which material is commonly used for adsorption in water filters?

• Plastic

• Paper towel

• Activated carbon

• Sponge

What happens to molecules during absorption?

• They form a new compound.

• They evaporate.

• They enter the bulk of the material.

• They stick to the surface.

Which process is used in masks to filter out air particles?

• Absorption

• Evaporation

• Adsorption

• Condensation