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Number of components (C), phase (P) and degrees of freedom (F) are related by Gibbs phase rule as
P + F - C = 2
C = P - F + 2
F = C - P - 2
P = F - C - 2
P + F - C = 2
C = P - F + 2
F = C - P - 2
P = F - C - 2