# Phase-rule meaning

A generalization in the study of equilibriums between two or more phases of a system, stating that the number of degrees of freedom is equal to the number of components minus the number of phases plus the constant 2, or F = C − P + 2

noun

A rule used in thermodynamics stating that the number of

**degrees of freedom**in a physical system at equilibrium is equal to the number of chemical components in the system minus the number of phases plus the constant 2.(physics) The rule which states that the number of degrees of freedom in a system at equilibrium equals the number of components minus the number of phases plus 2

noun

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