DEGREES OF FREEDOM IN A SYSTEM
Degrees of freedomConsider a system in an equilibrium state. In this state, the system has one or more phases; each phase contains one or more species; and intensive properties such as T, p, and the mole fraction of a species in a phase have definite values. Starting with the system in this state, we can make changes that place the system in a new equilibrium state having the same kinds of phases and the same species, but different values of some of the intensive properties. The number of different independent intensive variables that we may change in this way is thenumber of degrees of freedom or variance, F, of the system. Te equation is the following: F=2+C−P |