At melting points, this quantity that is directly proportional to fugacity is zero.
The Wulff construction is a theory designed to show the shape of crystals by minimizing this quantity. Surface tension is defined as this quantity divided by surface area. At melting points, this quantity that is directly proportional to fugacity is zero. Whenever this value is negative, then reactions associated with this quantity are spontaneous. For ten points, name this quantity, enthalpy minus the product of entropy and temperature, named for an American Scientist.
The Wulff construction is a theory designed to show the shape of crystals by minimizing this quantity.
Gibbs Free Energy