Gibbsi faaside reegel, faasireegel
the maximum number of phases (P) that may coexist at equilibrium is two plus number of components (C) in the mixture, minus the number of degrees of freedom (F); P+F=C+2, maksimaalne tasakaalus kooseksisteerivate faaside arv (P) võrdub komponentide arv (C) pluss kaks, miinus vabadusastmete arv (F) ( P= C+2-F)
