Adhesion
Definition
Adhesion is the tendency of different molecules to cling to each other. This property is crucial in biological processes and helps substances like water interact with other materials.
5 Must Know Facts For Your Next Test
- Adhesion contributes to capillary action, which allows water to travel through plant roots and stems.
- It is a result of hydrogen bonds forming between water molecules and other polar substances.
- Adhesion helps water form menisci in containers, where the liquid surface curves at the edges.
- It plays a role in wetting surfaces, such as when water spreads out on a glass surface.
- Adhesive forces can be observed when water droplets stick to spider webs or leaves.
Review Questions
- How does adhesion contribute to capillary action in plants?
- What type of bonds are primarily responsible for adhesion involving water?
- Give an example of adhesion observable in everyday life.
"Adhesion" appears in:
Study guides (1)
Related terms
Cohesion: Cohesion is the attraction between molecules of the same substance, such as water molecules sticking together.
Hydrogen Bonding: Hydrogen bonding is a type of weak chemical bond that occurs when a hydrogen atom bonded to a highly electronegative atom experiences attraction to another electronegative atom.
Surface Tension: Surface tension results from cohesive forces between liquid molecules at the surface, creating a minimal surface area.
