Define surface energy.

Define the term surface energy. Write down its dimensional formula and units.

Define surface density of electric charge

Surface tension is numerically equal to the surface energy. Define surface tension.

Define surface tension and surface energy. How are they related?

Define surface tension and surface energy. Obtain a relation between them.

Define surface tension and surface energy. Write units and dimensions of surface tension. Also prove that surface energy is numerically equal to the surface tension.

Define angle of contact and surface energy.

What is surface energy? Establish the relation between surface tension and surface energy.

Define surface tension. Why there is no surface tension in gases ?