What is the primary distinction between cohesive and adhesive forces?
Understand the Problem
The question is asking for the primary difference between cohesive and adhesive forces. It presents multiple-choice options, where the user needs to identify which statement correctly defines the distinction between these two types of forces.
Answer
Cohesive forces act between the same substance's molecules, and adhesive forces act between different substances' molecules.
The primary distinction between cohesive and adhesive forces is that cohesive forces occur between molecules of the same substance, while adhesive forces occur between molecules of different substances.
Answer for screen readers
The primary distinction between cohesive and adhesive forces is that cohesive forces occur between molecules of the same substance, while adhesive forces occur between molecules of different substances.
More Information
An everyday example of cohesive forces is the formation of water droplets, while adhesive forces can be observed when water spreads on a glass surface.
Tips
A common mistake is not recognizing the context of the forces. Remember, cohesive forces are within the same material, while adhesive forces deal with different materials.
Sources
- Cohesive and Adhesive Forces - Chemistry LibreTexts - chem.libretexts.org
- Adhesion vs. Cohesion | Differences, Effects & Examples - Study.com - study.com
- A short note on cohesive and adhesive forces and their main differences - Unacademy - unacademy.com
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