Which process involves a hazardous liquid interacting with the surface of a sorbent material such as activated charcoal?

Which process involves a hazardous liquid interacting with the surface of a sorbent material such as activated charcoal?

• A. Absorption
• B. Adsorption
• C. Chemical Degradation
• D. Dilution

Answer: (B)

Adsorption is the process at play when a hazardous liquid interacts with the surface of a sorbent like activated charcoal. It describes how molecules cling to the surface of the solid, using the vast internal surface area of the charcoal to trap contaminants at or near the surface without soaking into the material. This surface binding is what immobilizes the liquid and prevents it from spreading. In contrast, absorption would mean the liquid soaks into the interior of the material, like a sponge taking up water. Chemical degradation would involve a chemical reaction that breaks down the contaminant, not just surface attachment. Dilution merely mixes the contaminant with more liquid to lower concentration, without binding it to a surface.

Adsorption is the process at play when a hazardous liquid interacts with the surface of a sorbent like activated charcoal. It describes how molecules cling to the surface of the solid, using the vast internal surface area of the charcoal to trap contaminants at or near the surface without soaking into the material. This surface binding is what immobilizes the liquid and prevents it from spreading.

In contrast, absorption would mean the liquid soaks into the interior of the material, like a sponge taking up water. Chemical degradation would involve a chemical reaction that breaks down the contaminant, not just surface attachment. Dilution merely mixes the contaminant with more liquid to lower concentration, without binding it to a surface.