latent heat

• Chaleur absorbée ou libérée par un corps lors d'un changement d'état physique (fusion, solidification, vaporisation, condensation, sublimation) à température constante, sans variation de sa température.

The amount of heat energy absorbed or released by a substance during a phase change (such as melting, freezing, vaporization, or condensation) at a constant temperature and pressure.

1. Hidden thermal energyC1formal

   The amount of heat absorbed or released by a substance during a phase change (e.g., melting, boiling) without a change in temperature.

   chaleur latente

   • The latent heat of fusion is the energy needed to melt ice into water.
   • During condensation, latent heat is released into the atmosphere.
   • Engineers calculate latent heat to design efficient cooling systems.