Question

Short note on Surface energy.

Answer 1

Answer :

Surface energy -

To increase the surface area of a liquid, a work is done against the surface tension.

The work done against the surface tension will appear in the form of potential energy.

The work done against the surface tension in increasing per unit tension area of the liquid is known as surface energy at that temperature.

OR

At given temperature, the potential energy of per unit surface area of a liquid is known as surface energy of that liquid at that temperature.

If the work done against the surface tension $(I)$ to increase an area $A$ is $w$. Then the surface energy,

⇒ $\boxed{Surface\:energy=\frac{W}{A}}$

Answer 2

$\huge\red{Answer}$

Surface Energy :-

The energy associated with the intermolecular forces at the interface between two media the surface energy per unit area equals the surface tension. — called also free surface energy.

HOPE IT HELPS YOU !!