Formula for Surface Tension
Mathematically, the surface tension is defined as the force (F) acting on the surface and the length (l) of the surface, so is given as:
T = F / l
Also, the ratio of the work done (W) and the change in the area of the surface (A) is termed surface tension.
T = W / A
Surface Tension
Surface tension is the ability of fluid surfaces to contract into the smallest possible surface area. Have you ever found that even after filling a glass full of water, you can only add a few more drops before it spills? Have you ever lost a thermometer and watched how the mercury reacts as it falls? All of which are caused by the surface tension of the surface. Its isolated surface behaves like a strong rubber membrane due to the suppressive force in the fluid molecules. As a result, the individual surface of the fluid is still in a state of stress and tends to have the smallest field. Thus, Surface Tension refers to the tension on the fluid’s individual surface.
Table of Content
- What is Surface Tension?
- Cohesion and Surface Tension
- Surface Tension at Molecular Level
- Formula for Surface Tension
- Unit of Surface Tension
- Dimension of Surface Tension
- What Causes Surface Tension?
- What is the Unit of Surface Tension?
- How to Calculate Surface Tension?
- Methods of Measurement
- What is Surface Energy?
- What is Angle of Contact?
- Examples of Surface Tension
- Factors affecting Surface Tension
- Solved Example on Surface Tension
Let’s discuss more surface tension in detail in this article.