Question

what is surface tension ​

Answer 1

Answer:

❁ Surface tension is the property of the liquid due to which the free surface of the liquid like a stretched membrane which tries to contract and occupy minimum surface area.

❁ Surface tension is a vector quantity.

❁ It decreases with increase in temperature and vanishes at critical temperature where the surface vanishes due to the transformation of liquid to vapour.

❁ The dust particles are lubricant (contamination) material particles on the liquid surface decreases surface tension of the liquid this is because of less adhesive force between them.

Answer 2

Answer:

the tension of the surface film of a liquid caused by the attraction of the particles in the surface layer by the bulk of the liquid, which tends to minimize surface area.