enthalpy

en thal py |ˈenˌTHalpē, enˈTHalpē ˈɛnθælpi | ▶noun Physics a thermodynamic quantity equivalent to the total heat content of a system. It is equal to the internal energy of the system plus the product of pressure and volume. (Symbol: H ) • the change in this quantity associated with a particular chemical process. ORIGIN 1920s: from Greek enthalpein ‘warm in, ’ from en- ‘within ’ + thalpein ‘to heat. ’

enthalpy

enthalpy |ˈɛnθ (ə )lpi, ɛnˈθalpi | ▶noun Physics a thermodynamic quantity equivalent to the total heat content of a system. It is equal to the internal energy of the system plus the product of pressure and volume. (Symbol: H ) • the change in enthalpy associated with a particular chemical process. ORIGIN 1920s: from Greek enthalpein ‘warm in ’, from en- ‘within ’ + thalpein ‘to heat ’.