Definition of Phase rule

1. Noun. (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 ¹

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Medical Definition of Phase rule

1. An expression of the relationships existing between systems in equilibrium: P + V = C + 2, where P is the number of phases, V the variance or degrees of freedom, and C the number of components; it also follows that the variance is, V = C + 2 -P. For H2O at its triple point, V = 1 + 2 -3 = 0, i.e., both temperature and pressure are fixed. Synonym: Gibb's phase rule. (05 Mar 2000)

Phase Rule Pictures

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Lexicographical Neighbors of Phase Rule

phase contrast microscopy
phase diagram
phase encoding
phase function
phase functions
phase image
phase in
phase inverter
phase modulation
phase modulator
phase modulators
phase of cell division
phase of the moon
phase out
phase plate
phase rule (current term)
phase separation
phase shift
phase shift keying
phase space
phase transfer catalysis
phase transition
phase variation
phase velocity
phased out

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