Question

Question :If the surface tension of a
liquid is T,the gain in surface energy for
an increase in liquid surface by A is
​

Answer 1

Answer:

As we know,

Surface energy = surface tension * increment in area  

=T∗A 

Answer 2

It has no component perpendicular to the horizontal surface. As a result, there is no pressure difference between the liquid side and the vapour side. ... Thus, there is always an excess of pressure on the concave side of a curved liquid surface over the pressure on its convex side due to surface tension.