Scientific

Capacité thermique massique

Définition

La capacité thermique massique est la quantité d'énergie nécessaire pour élever la température de 1 kg d'une substance de 1 °C (ou 1 K).

Explication

Water has an exceptionally high specific heat capacity of 4,186 J/(kg·K), which is why oceans moderate coastal climates and why water is used in radiators. By contrast, copper is only 385 J/(kg·K), meaning it heats and cools far more rapidly. This property governs everything from cooking times to engine cooling system design.

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