Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps

Noun: enthalpy  en-thul-pee or 'en,thal-pee
  1. (thermodynamics) a thermodynamic quantity equal to the internal energy of a system plus the product of its volume and pressure
    "enthalpy is the amount of energy in a system capable of doing mechanical work";
    - heat content, total heat, H

Derived forms: enthalpies

Type of: physical property

Encyclopedia: Enthalpy