Question

what is capillary rise​

Answer 1

Explanation:

Capillary action(rise) is the ability of a liquid to flow in narrow spaces without the assistance of, or even in opposition to, external forces like gravity

Answer 2

It is rise in a liquid above the level of zero pressure due to a net upward force produced by the attraction of the water molecules to a solid surface .

**Adhesion of water to the walls of a vessel will cause an upward force on the liquid at the edges and result in a meniscus which turns upward. The surface tension acts to hold the surface intact. Capillary action occurs when the adhesion to the walls is stronger than the cohesive forces between the liquid molecules.

**In the same way that water moves upwards through a tube against the force of gravity; water moves upwards through soil pores, or the spaces between soil particles. As a result, the smaller the soil pores, the higher the capillary rise.

**The phenomenon of a rise and fall of a liquid inside a capillary tube when it is dipped in the liquid is called capillary action or capillarity. When a glass capillary is immersed in water, water rises inside the tube.

**Capillarity is the result of surface, or interfacial, forces. The rise of water in a thin tube inserted in water is caused by forces of attraction between the molecules of water and the glass walls and among the molecules of water themselves. The narrower the bore of the capillary tube, the higher the water rises.

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