Specific surface energy
Encyclopedia
specific surface energy, also known as surface free energy, is the amount of increase of free energy
when the area of surface increases by every unit area. It can be calculated using Stefan's formula
. Specific surface energy is the same as surface tension
for isotropic materials, but different from it for anisotropic materials.
Thermodynamic free energy
The thermodynamic free energy is the amount of work that a thermodynamic system can perform. The concept is useful in the thermodynamics of chemical or thermal processes in engineering and science. The free energy is the internal energy of a system less the amount of energy that cannot be used to...
when the area of surface increases by every unit area. It can be calculated using Stefan's formula
Stefan's formula
In thermodynamics, Stefan’s formula says that the specific surface energy at a given interface is determined by the respective enthalpy difference \scriptstyle \Delta H^*....
. Specific surface energy is the same as surface tension
Surface tension
Surface tension is a property of the surface of a liquid that allows it to resist an external force. It is revealed, for example, in floating of some objects on the surface of water, even though they are denser than water, and in the ability of some insects to run on the water surface...
for isotropic materials, but different from it for anisotropic materials.