At constant temperature and pressure, this quantity is equal to the derivative of Gibbs free energy with respect to area.
For a crystal, this quantity is proportional to the enthalpy of sublimation divided by the square of the distance between atomic centers. This quantity is plotted in polar coordinates as a function of theta in a Wuff construction. At constant temperature and pressure, this quantity is equal to the derivative of Gibbs free energy with respect to area. In order to increase pulmonary compliance, alveoli secrete a substance to lower this quantity. The existence of this quantity creates a meniscus when a liquid is held in a tube. For 10 points, name this quantity that results from cohesive forces between liquid molecules, which allows certain insects to walk on water.
For a crystal, this quantity is proportional to the enthalpy of sublimation divided by the square of the distance between atomic centers.
surface tension [or surface energy]