... between the number of components, C, the number of phases, P, and the number of degrees of freedom, F, in some equilibrium thermodynamic system:F = C – P + 2in the case of varying temperature ... independently. In the case of the arbitrarily chosen temperature, the compositions of the phases are fixed, and in the case of the arbitrarily chosen composition of one of the phases at a given ... concentration of one of the components. If P = 1, then F = 2, which means that, in a single-phase field of the corresponding phase diagram, both the temperature and the com-position of the phase...