univariant การใช้

• Univariant lines are sometimes called reaction lines.
• Univariant lines are usually drawn as a solid line while their metastable extensions are drawn as a dotted line.
• The extension of a univariant line through the invariant point is called the "'metastable extension " '.
• Univariant lines and their metastable extensions are often labeled by putting in square brackets the phase that is absent from the reaction associated with the given univariant line.
• Univariant lines and their metastable extensions are often labeled by putting in square brackets the phase that is absent from the reaction associated with the given univariant line.
• A generic phase diagram with unspecified axes; the invariant point is marked in red, metastable extensions labeled in blue, relevant reactions noted on stable ends of univariant lines.
• The "'Morey-Schreinemaker Coincidence Theorem "'states that for every univariant line that passes through the invariant point, one side is stable and the other is metastable.
• In other words, since every univariant line represents a chemical equilibrium, these equilibrium curves are named with the phase ( or phases ) that is " not " involved in the equilibrium.
• Take an example with four phases : A, B, C, D . If a univariant line is defined by the equilibrium reaction A + D?! ?! C, this univariant line would be labeled [ B ], because the phase B is absent from the reaction A + D?! ?! C.
• Take an example with four phases : A, B, C, D . If a univariant line is defined by the equilibrium reaction A + D?! ?! C, this univariant line would be labeled [ B ], because the phase B is absent from the reaction A + D?! ?! C.