enthalpy

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en·thal·py (H),

(en'thal-pē),
Heat content, symbolized as H; a thermodynamic function, defined as E + PV, where E is the internal energy of a system, P the pressure, and V the volume; the heat of a reaction, measured at constant pressure, is ΔH.
Synonym(s): heat (4)
[G. enthalpō, to warm in]

en·thal·py

(H) (en'thal-pē)
Heat content, symbolized as H; a thermodynamic function, defined as E + PV, where E is the internal energy of a system, P the pressure, and V the volume; the heat of a reaction, measured at constant pressure, is ΔH.
Synonym(s): heat (3) .
[G. enthalpō, to warm in]
References in periodicals archive ?
W/L([micro] [V.sub.th] [mu] m) (volts) SS (V/dec.) ([cm.sup.2]/V-s) 1000/200 1.15 0.137 38.29 W/L([micro] [I.sub.ON]/[I.sub.OFF] m) 1000/200 2.9 x [10.sup.6] TABLE 2: The standard enthalpy of formation for Hf[O.sub.2], [In.sub.2][O.sub.3], [Ga.sub.2][O.sub.3], and ZnO.
The calculated apparent activation energy and standard enthalpy were 83.1 kJ/mol and 8.27 kJ/mol, respectively.
The values of standard free energy adsorption ([DELTA] [G[degrees].sub.ads]), standard enthalpy of adsorption ([DELTA] [H[degrees].sub.ads]), standard entropy of adsorption ([DELTA] [S[degrees].sub.ads]), and equilibrium constant (K) are listed in Table 4.
Energetics I: First law; definition of enthalpy; thermochemical equations: energy changes and stoichiometry; standard enthalpy of formation; bond energy; fuels; photochemical reactions.

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