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Feb 28, 2024 · The main difference between adhesive and cohesive forces is that adhesive forces involve the attraction between molecules of different substances, whereas cohesive forces involve the attraction between molecules of the same substance.
Jan 30, 2023 · Use the principles of cohesive and adhesive forces to explain this situation. Explain why a water strider can glide on the water with the knowledge of cohesion in water. Propose different types of forces that adhesive forces can build on.
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Definition. Adhesive forces are the attractive forces between unlike molecules. They play a significant role in phenomena such as capillary action and the wetting of surfaces.
- Surface Tension
- Meniscus
- Capillary Action
Surface tension is the result of cohesive forces between adjacent molecules. The molecules in the bulk of a liquid are pulled equally in all directions by the neighboring molecules. But the surface molecules do not have molecules on all sides. Hence they are pulled inwards causing the liquid to shrink to form a surface with minimum area, a sphere. ...
The curved surface of a liquid inside a container is the meniscus. 1. When the cohesive forces between the liquid molecules are greater than the adhesive forces between the liquid and the wall s of the container, the surface of the liquid is convex. For example, Mercury in a container. 2. When the cohesive forces between the liquid are less than th...
Capillary action is the result of cohesive and adhesive forces. When a liquid flows through a narrow space, the cohesive and adhesive forces act together to lift it against the natural force of gravity. Wetting of a paper towel, water flowing up from the roots to the tip of a plant are a few examples of capillary action.
A strong adhesive force tends the liquid to spread over the surface whereas a strong cohesive force is responsible for the formation of water droplets on the water surface. The adhesion and cohesion forces, both vary in their strengths.
- When two similar substances or molecules face the force of attraction this force is known as cohesion force. Water is an example of cohesion. Each...
- When two dissimilar substances or molecules face the force of attraction this force is known as adhesion force. Water drops on the surface of leave...
- The difference between adhesion and cohesion is the attraction between same molecules called cohesion and the attraction between different molecule...
- Cohesion allows for the development of surface tension which causes the surface of liquid to contract to the smallest possible surface area. It hel...
Feb 20, 2022 · Attractive forces between molecules of different types are called adhesive forces. Cohesive forces between molecules cause the surface of a liquid to contract to the smallest possible surface area. This general effect is called surface tension.
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Definition. Adhesive forces are the attractive interactions between unlike molecules. These forces are responsible for phenomena such as capillary action and the spreading of liquids on solid surfaces.
