It is easier to spray water to which soap is added because addition of soap to water

By adding soluble impurity in a liquid, angle of contact

The potential energy of a molecule on the surface of a liquid compared to the molecules inside the liquid is

Water rises in a capillary tube of radius '$$r$$' upto a height '$$h$$'. The mass of water in a capillary is '$$m$$'. The mass of water that will rise in a capillary tube of radius $$\frac{'r'}{3}$$ will be