# enthalpy

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Related to enthalpy: entropy, Gibbs free energy

## en·thal·py

(ĕn′thăl′pē, ĕn-thăl′-)
n. pl. en·thal·pies
Symbol H 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) + -y.]

## enthalpy

(ˈɛnθəlpɪ; ɛnˈθæl-)
n
(General Physics) a thermodynamic property of a system equal to the sum of its internal energy and the product of its pressure and volume. Symbol: H Also called: heat content or total heat
[C20: from Greek enthalpein to warm in, from en-2 + thalpein to warm]

## en•thal•py

(ˈɛn θæl pi, ɛnˈθæl-)

n., pl. -pies.
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.
[1925–30; < Greek enthálp(ein) to warm in (en- en-2 + thálpein to warm)]

## en·thal·py

(ĕn′thăl′pē)
The amount of energy contained in a system.

## enthalpy

A measure of the stored heat energy contained in a substance.
ThesaurusAntonymsRelated WordsSynonymsLegend:
 Noun 1 enthalpy - (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"physical property - any property used to characterize matter and energy and their interactionsthermodynamics - the branch of physics concerned with the conversion of different forms of energy
References in periodicals archive ?
From a mathematical point of view this doesn't matter and the mixture can be treated as a single fluid with enthalpy being the aggregate of the liquid and gas phases.
Based on the sorption isotherms of crambe fruits, the value of the L/L' ratio of Equation 3 was assessed at different equilibrium moisture contents, Xe (decimal), which adjusted the equation to the enthalpy of vaporization of water, as reported by Rodrigues--Arias (Brooker, Bakker-Arkema, & Hall, 1992).
The enthalpy of the fluid is a function of the temperature, and is utilized in the impeller/rotor work calculations.
To expand the application of the WLF equation is the primary object of this work, which is concerned with enthalpy relaxation upon the physical aging of amorphous polystyrene.
fs] = enthalpy of saturated fluid, kJ/kg (Btu/lb) [h.
Sacrificial concrete ablation enthalpy quantifies the heat required to convert a unit mass of virgin sacrificial concrete into condensed and gaseous decomposition products at the specified ablation temperature.
Enthalpy of freon vapor entering the 2nd stage high pressure compressor
It's crucial to understand enthalpy if you want to save energy in your cold climate aquaponics system.
Another overlooked component is the enthalpy sensor, which measures the combination of temperature and humidity.
The thermodynamic parameters, such as enthalpy, Gibbs free energy and entropy are paramount analyzed in order to establish how efficient the cell hydrogen production, where the working potential plays an important role in determining of these parameters.

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