Question

define surface tension and derive expression for it ​

Answer 1

Answer:

Surface tension is defined as, The ratio of the surface force F to the length L along which the force acts. Mathematically, surface tension can be expressed as follows: T=F/L.

Answer 2

"Surface tension can be defined as the tension on the surface of a liquid due to the cohesive force on the molecules of the surface."

• It results from the force of attraction between the molecules of the liquid.
• It is represented by the  expression, T = F/L.
• Its unit is N/m.