Extra energy associated with surfaces of liquid is due to
Difference in surrounding around surface.
due to viscosity
due to greater height of surface
None of the above
As we learned
Surface Energy -
It is defined as the amount of work done in increasing the area of the liquid against surface tension.
-
Due to difference in sorrounding, the molecule at surface are not in equillibrium. because of this molecule at surface of liquid possess more energy than molecule in the bulk.