3. Which material was least useful in absorbing the oil?4. Why do you think some materials absorbed oil better thanothers?
Answer (2)
Answer:**3. Which material was least useful in absorbing the oil?**To determine which material was least useful in absorbing oil, you would need to compare the efficiency of different materials in absorbing oil during the experiment. The material with the lowest amount of absorbed oil or the least effective performance in containing or soaking up the oil would be considered the least useful. **4. Why do you think some materials absorbed oil better than others?**Several factors influence why some materials absorb oil better than others:- **Porosity:** Materials with higher porosity have more air spaces or voids that can trap oil. More porous materials can absorb larger quantities of oil because they have more surface area and space for the oil to be absorbed.- **Surface Tension:** The surface tension of the material affects how well it can hold or soak up the oil. Materials that are hydrophobic (repellent to water) often absorb oil more effectively because they attract and retain oil.- **Material Composition:** The chemical composition and structure of the material play a significant role. Materials with fibers or membranes designed to trap or bind oil, such as certain types of sponges or specialized absorbents, will typically be more effective.- **Density:** Less dense materials with larger interstitial spaces can absorb more oil as they provide more area for the oil to be captured.- **Capillary Action:** Materials that facilitate capillary action, where oil moves through tiny channels in the material, will generally absorb oil better.These factors collectively determine the efficiency of a material in absorbing oil, leading to variations in performance among different materials.
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