TERMIUM Plus®

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DIFUSIVIDAD TERMICA [1 record]

Record 1 2014-05-23

English

Subject field(s)
  • Thermodynamics
  • Scientific Measurements and Analyses
DEF

The ratio of the thermal conductivity of a substance to the product of its density and specific heat.

OBS

The SI [International System of Units] unit for this property is the square metre per second.

OBS

thermal diffusivity: term and definition standardized by ISO.

French

Domaine(s)
  • Thermodynamique
  • Mesures et analyse (Sciences)
DEF

Rapport de la conductivité thermique d'une substance au produit de sa masse volumique par sa chaleur spécifique.

OBS

L'unité SI [Système international d'unités] pour cette caractéristique est le mètre carré par seconde.

OBS

Cette grandeur est fonction des variables d'état (température, pression [...]).

OBS

diffusivité thermique : terme et définition normalisés par l'ISO et l'AFNOR.

Spanish

Campo(s) temático(s)
  • Termodinámica
  • Medición y análisis (Ciencias)
DEF

Relación entre la conductividad térmica de una sustancia y el producto de su densidad y calor específico.

OBS

La unidad SI [Sistema internacional de unidades] para esta propiedad es el metro cuadrado por segundo.

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