[en-thal-pee, en-thal-] 
| a quantity associated with a thermodynamic system, expressed as the internal energy of a system plus the product of the pressure and volume of the system, having the property that during an isobaric process, the change in the quantity is equal to the heat transferred during the process. Symbol: H |
| en·thal·py (ěn'thāl'pē, ěn-thāl'-) n. Symbol H pl. en·thal·pies A thermodynamic function of a system, equivalent to the sum of the internal energy of the system plus the product of its volume multiplied by the pressure exerted on it by its surroundings. [Greek enthalpein, to heat in (en-, in; see en-2 + thalpein, to heat) + -y2.] |
enthalpy en·thal·py (ěn'thāl'pē, ěn-thāl'-)
n.
A thermodynamic function of a system, equivalent to the sum of the internal energy of the system plus the product of its volume multiplied by the pressure exerted on it by its surroundings.
θæl