What is surface tension ?

Surface tension is

Surface tension is

What is the surface tension of boiling water ?

If the difference between pressure inside and outside of a soap bubble is 6 mm of water and its radius is 8 mm. What is the surface tension in dynes per cm.

If 72 xx 10^(-5) J of work is done to increase the radius of a soap bubble from 2 cm to 3 cm. What is the surface tension of the soap solution?

Surface tension acts

On what two factors surface tension depends ?

What is the unit of surface tension ?

Surface tension is the property of a liquid by virtue of which free surface of liquid at rest tries to have minimum surface area. In doing so, the free surface of liquid at rest behaves as if it is covered with a stretched membrane. Surface tension (S) of a liquid is measured by from (F) acting on unit length fo a line (l) imagined to be drawn tangentially anywhere on the free surface i.e., S = (F)/(l). S is measured in N m^(-1) Read the above passage and answer the following question : (i)What is the cause of surface tension ? (ii) A wire ring of 30 mm diameter resting flat on the surface of a liquid is raised. The pull required is 1.5 gf more before the film breaks then it is after. What is surface tension of the liquid ? (iii) What are the implication of this phenomenon in day to day life ?