Question

Define surface energy per unit area. State its units and dimensions.

Answer 1

Surface energy can be defined as the energy difference between the bulk of the material and the surface of the material. Surface energy is defined as the surface energy per unit surface area. The surface energy per unit area is identical to the surface tension measured. The units of surface energy are Jm-2

Answer 2

Answer:

Surface energy quantifies the disruption of intermolecular bonds that occurs when a surface is created. It is also called as surface free energy or interfacial free energy. In simple language, surface energy can be defined as the work per unit area done by the force that creates the new surface.