Question

explain surface tension​

Answer 1

the attractive force exerted upon the surface molecules of a liquid by the molecules beneath that tends to draw the surface molecules into the bulk of the liquid and makes the liquid assume the shape having the least surface area.

Answer 2

Answer:

SURFACE TENSION

A molecule inside the liquid experience in equal cohesive force in all direction due to surrounding molecules hence the net force acting in zero and other molecules on the surface of liquid it experience in net force from a molecules below it due to his cool inside the molecules below it oppose the motion so that the surface behave as a stretched membrane this phenomenal is called Surface Tension.

Dueto surface tension there is a tendency in a liquid to have minimum surface area there for liquid drops are in spectacle for oval in shape.

This is due to the difference between the cohesive between the liquid molecules and adhesive due to surface molecules.

This curved surface due to meniscus.

In adhesive force is greater than cohesive force surface in concave

( in case of water).

If if cohesive force is greater than adhesive force is convex.

( in the case of Mercury) .

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