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Adsorption & Absorption Video Lecture - Physical Chemistry
FAQs on Adsorption & Absorption
| 1. What is adsorption? |  |
Ans. Adsorption is a process where molecules or particles from a substance adhere to the surface of another substance. It occurs when the molecules of the substance being adsorbed are attracted to the surface of the adsorbent material.
| 2. How does adsorption differ from absorption? | |
Ans. The main difference between adsorption and absorption is that in adsorption, the molecules adhere to the surface of another substance, while in absorption, the molecules are taken up by another substance throughout its volume.
| 3. What are some examples of adsorption? | |
Ans. Some common examples of adsorption include the adsorption of gases on activated charcoal, the adsorption of dyes on fabrics, and the adsorption of pollutants on the surface of water filters.
| 4. How does adsorption work in water treatment? | |
Ans. Adsorption is commonly used in water treatment processes to remove impurities and contaminants. Activated carbon is often used as an adsorbent material, as it has a large surface area and can effectively adsorb organic compounds, chlorine, and other substances present in water.
| 5. Can adsorption be reversible? | |
Ans. Yes, adsorption can be reversible. The adsorbed molecules can be released from the surface of the adsorbent through desorption, which is the process of detaching the adsorbed species from the adsorbent material. Reversibility depends on various factors such as temperature, pressure, and the nature of the adsorbent and adsorbate.
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Apr 19, 2026 Last updated
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