TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

HEAT FORMATION [1 record]

Record 1 2012-02-17

English

Subject field(s)
  • Analytical Chemistry
  • Chemical Elements and Compounds
  • Heat (Physics)
DEF

The amount of heat freed or absorbed when one gram molecular weight of a compound forms from its elements.

French

Domaine(s)
  • Chimie analytique
  • Éléments et composés chimiques
  • Chaleur (Physique)
DEF

Quantité de chaleur dégagée ou absorbée lorsqu'un composé est formé à partir des éléments à leur état normal, à une température et à une pression données.

Spanish

Campo(s) temático(s)
  • Química analítica
  • Elementos y compuestos químicos
  • Calor (Física)
DEF

La cantidad de calor despedido o absorbido cuando se forma un compuesto a partir de sus elementos, dependiente del estado físico y alotrópico de los productos iniciales y finales; se expresa de ordinario referido a la molécula gramo.

CONT

Así, la ecuación de combustión del hidrógeno es: H2(g)[2,g,subíndices]+½O2(g)[2,g,subíndices]=>H2[ subíndice]O(l)[ subíndice]+68 400 cal. Las 68 400 cal son el calor de formación del agua líquida a partir de sus elementos.

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