What does capillary rise depend on?

The rise or fall depends on the relative magnitudes of the cohesion and the adhesion of the liquid to the walls of the capillary tube. Liquids rise in the tube when adhesion is greater than cohesion and fall in the tube when the cohesion is greater than adhesion.

How high a liquid will rise up a capillary tube depends on?

3. When a glass capillary is is placed in liquid water, water rises up into the capillary. The height to which the water rises depends on the diameter of the tube and the temperature of the water but not on the angle at which the tube enters the water. The smaller the diameter, the higher the liquid rises.

On what factor does the rate of flow of water in a capillary depend?

In a horizontal capillary tube, the rate of capillary flow depends on the surface tension force as well as the viscous force.

What is capillary rise in liquids?

DEFINITION: A 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, e.g. glass, soil (for those cases where the adhesion of the liquid to the solid is greater than the cohesion of the liquid to itself)

What happens in the capillary rise of a liquid when the radius of the capillary tube increases?

If ‘r’ is the radius of the bore of the capillary tube, the length along which the force of surface tension acts is 2πr. Due to this force the liquid rise up in the tube. The liquid goes on rising till the force of surface tension is balanced by the weight of the liquid column.

How high a liquid will rise up a narrow tube as a result of capillary action depends on?

Height of the rise of the fluid due to capillary action depends on the adhesive force between the liquid and the glass surface. It also depends on the cohesive force of the fluid, more the cohesive force in the fluid less will be the rise of the fluid. Rise of the fluid also depends on the gravity.

On what factor does the rise of liquid depends?

So the rise of a liquid in a capillary tube depends on surface tension of liquid, contact angle, density of liquid and inner radius of capillary.

Why does water go up a capillary 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.

What is capillary water and how does it rises up?

Water rises inside the capillary tube due to adhesion between water molecules and the glass walls of the capillary tube. This adhesion, together with surface tension in the water, produces an effect called capillarity , with a characteristic concave surface.

What is the relation between capillary rise and radius of capillary tube?

Capillary rise decreases with increase in the radius of tube.

Why does water rise higher in thinner capillary tubes?

Without capillary action, the water level in all tubes would be the same. Smaller diameter tubes have more relative surface area inside the tube, allowing capillary action to pull water up higher than in the larger diameter tubes.