Difference Between Surface Tension and Capillary Action

The surface tension acts to hold the surface intact. Capillary action occurs when the adhesion to the surface material is stronger than the cohesive forces between the water molecules. ... Water wants to stick to the glass and surface tension will push the water up, until the force of gravity prevents further rise.

1. How do you find the surface tension of a capillary action?
2. What is the difference between tension and surface tension?
3. What is the difference between surface tension and viscosity?
4. What is the definition of capillary action?
5. How do you calculate surface tension?
6. Which has the highest surface tension?
7. Why does surface tension happen?
8. What is relation between surface tension and surface energy?
9. What is the relationship between surface free energy and surface tension?
10. Does higher viscosity mean higher surface tension?
11. Does surface tension affect flow rate?
12. Why do electrolytes increase surface tension?

How do you find the surface tension of a capillary action?

A liquid of density ρ and surface tension σ rises in a capillary of inner radius r to a height h=2σcosθρgr h = 2 σ cos ⁡ θ ρ g r where θ is the contact angle made by the liquid meniscus with the capillary's surface.

What is the difference between tension and surface tension?

In short; surface tension is the property of the liquid in contact with gas phase (usually air). Interfacial tension, on the other hand, is the property between any two substances. ... Surface and interfacial tension are usually presented by the symbol σ and it is measured by force per unit length.

What is the difference between surface tension and viscosity?

However, viscosity results due to collaboration among molecules of the identical molecules located in the same material (in case of fluids). Whereas surface tension is determined by the difference of interactions between the molecules of the material (fluid) with the molecules of the material in contact.

What is the definition of capillary action?

Capillary action is important for moving water (and all of the things that are dissolved in it) around. It is defined as the movement of water within the spaces of a porous material due to the forces of adhesion, cohesion, and surface tension.

How do you calculate surface tension?

Surface tension is given by the equation S = (ρhga/2) where S is the surface tension, ρ (or rho) is the density of the liquid you are measuring, h is the height the liquid rises in the tube, g is the acceleration due to gravity acting on the liquid (9.8 m/s²) and a is the radius of the capillary tube.

Which has the highest surface tension?

Glycerol in water has the highest surface tension followed by detergent solution in water, soup solution in water and water. It is because glycerol has more hydrogen bonds formed per molecule.

Why does surface tension happen?

Surface tension in water owes to the fact that water molecules attract one another, as each molecule forms a bond with the ones in its vicinity. ... This inward net force causes the molecules on the surface to contract and to resist being stretched or broken.

What is relation between surface tension and surface energy?

The attractive force of the molecules present at the surface of a liquid towards each other is called the surface tension of that liquid. Surface energy is the equivalent attractive force present between the molecules at the surface of a solid substance.

What is the relationship between surface free energy and surface tension?

Surface free energy can be considered as the surface tension of a solid. The unit of surface free energy is mN/m which is equivalent to dynes/cm.

Does higher viscosity mean higher surface tension?

If you relate the water and syrup demonstration you will see that a higher viscosity means a greater surface tension and a lower viscosity means a lower surface tension.

Does surface tension affect flow rate?

Less viscous fluids are thin and runny and have faster flow rates. Thicker fluids are more viscous and have slower flow rates. The cohesion of particles on a liquid's surface is called surface tension.

Why do electrolytes increase surface tension?

Abstract. Addition of solute into solvent may lead to an increase in surface tension, such as salt in water and water in alcohol, due to solute depletion at the interface. ... Our result may shed some light on the surface tension increment for electrolyte solutions with concentration above 0.2M.