TERMIUM Plus®

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DIAGRAMME PHASES [1 record]

Record 1 2012-01-16

English

Subject field(s)
  • Analytical Chemistry
  • Thermodynamics
DEF

An empirically derived graph showing the limiting conditions for solid, liquid, and gaseous phases (states) of a single substance or of a mixture of substances while undergoing changes in pressure and temperature or in some other combination of variables, such as solubility and temperature.

CONT

Phase diagrams are widely used in studies of mineral equilibria in connection with the conditions of formation of rocks and minerals within the Earth. They also are invaluable when designing industrial equipment and seeking optimum conditions for manufacturing processes, and in determining the purity of substances.

French

Domaine(s)
  • Chimie analytique
  • Thermodynamique
DEF

Graphique permettant de déterminer les espèces ou les phases prépondérantes d'un système chimique dans des conditions thermodynamiques données.

CONT

Pour toute valeur des paramètres thermodynamiques définissant l'état d'un système, on peut déterminer la phase stable de ce dernier. Les diagrammes de phases, très utilisés en métallurgie, représentent graphiquement les domaines d'équilibre de ces différentes phases.

Spanish

Campo(s) temático(s)
  • Química analítica
  • Termodinámica
DEF

Diagrama de variables intensivas de los sistemas polifásicos en equilibrio, que permite cuantificar las variaciones que se producen en las fases cuando son modificadas.

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