Capillarity Action Important Point
Various properties or characters on which the capillary action in a tube depends are,
- Nature of Liquids and Solids
- Angle of Contact
- Independent of Shape of Capillary, etc
Let’s learn about them in detail.
Nature of Liquids and Solids: The nature of liquid and solid is responsible for the capillary action in a capillary tube.
Angle of Contact
It also depends on the angle of contact.
If θ > 90°
If the meniscus in convex, then h will be negative, i.e. liquid will fall in the capillary. This happens in the case of mercury in a glass tube.
If θ = 90°
If the meniscus is plane, then h is zero and there is no capillary action observed.
If θ < 90°
If the meniscus in concave, then h will be positive, i.e. liquid will rise in the capillary. This happens in the case of water in a glass tube.
The image showing the capillary action is added below,
Independent of Shape of Capillary: The rise in capillary is independent of the shape of the capillary.
Capillary Action
Capillary Action in Physics is the action of the liquid in the capillary tubes. Capillary tubes, which are narrow cylindrical tubes, have very small diameters. It is observed that the liquid in the capillary either rises (or) decreases in relation to the level of the surrounding liquid when these tiny tubes are submerged in a liquid. The action of these liquids is called the capillary action and it is an important phenomenon in physics.
Capillary action is caused by the intermolecular attraction of the water molecules and the adhesive force between the capillary walls and the liquid. In this article, we will learn about Capillary Action, the Capillary Action Formula, Its derivation, examples, and others in detail.
Table of Content
- What Is Capillary Action?
- Capillary Action Formula
- Forces in Capillary Action
- Liquid Meniscus in Capillarity
- Difference between Concave, Convex and Plane Meniscus
- Applications of Capillarity