Factors Affecting Surface Tension in Physics – Surface Tension
We are giving a detailed and clear sheet on all Physics Notes that are very useful to understand the Basic Physics Concepts.
Factors Affecting Surface Tension
- Surface tension of a liquid decreases with increase in temperature and becomes zero at critical temperature.
- At boiling point, surface tension of a liquid becomes zero and becomes maximum at freezing point.
- Surface tension decreases when partially soluble impurities such as soap, detergent, dettol, phenol etc are added in water.
- Surface tension increases when highly soluble impurities such as salt is added in water.
- When dust particles or oil spreads over the surface of water, its surface tension decreases.
- When charge is given to a soap bubble, its size increases because surface tension of the liquid decreases due to electrification.
- In weightlessness condition, liquid does not rise in a capillary tube.
In Physics, the tension of the surface film of a liquid because of the attraction of the surface particles by the bulk of the liquid, which tries to minimize surface area is called surface tension. When the surface of the liquid is strong enough, then surface tension is applicable. It is strong enough to hold weight.
|Surface Tension||Adhesive Force|
|Cohesive Force||Molecular Range|
|Factors Affecting Surface Tension||Surface Energy|
|Angle of Contact||Capillarity|