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]
Farlex Partner Medical Dictionary © Farlex 2012

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]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
Therefore, it is necessary to replenish the bank of available experimental data on enthalpies of combustion and formation of these substances systematically [1-3, 5-10] to carry out chemical-technological calculations.
Denaturation temperatures and enthalpies of casein for its various enzymatic hydrolysates studied by differential scanning calorimeter (DSC).
The values of the enthalpies of formation of the L-enantiomer are quasi-identical with that of racemic, while that of D-histidine is more negative (within the cumulated experimental errors).
For samples that mainly experienced adiabatic cooling while ascending, straight lines were extended from the sampling points to S (the steam point at zero chloride), marking the enthalpies of the subsurface geothermal fluids along the corresponding lines to obtain the locations of subsurface geothermal fluids on the enthalpy-chloride plot.
Table 2 lists the various enthalpies of reaction as determined by this study.
In the tables of enthalpies of formation for each species, we also provide a column identifying the (experimental or computational) method used to derive the enthalpies of formation.
Likewise, the high temperature evaporator cooling load, [Q.sub.h], and the enthalpies at state 1h and 4h are used to calculate the mass flow rate through the high temperature compressor, [m.sub.h].
The effect of minerals on retorting enthalpies of some Australian tertiary oil shales // Fuel.
Gained results of variables h, [DELTA]h, G, and Q, and [Q.sub.K1], [Q.sub.K2], [Q.sub.K3], but characteristic points of system depends on temperature values, tensions ad appropriate enthalpies of working mediums on system.
Scales of Lewis basicity have been established from experimental complexation enthalpies toward [BF.sub.3] and a number of other Lewis acids.
* obtaining relaxation data on additional heating rates so the activation enthalpies (fitting constants) can be obtained.
It allows for the measurement of glass-transition temperature, heat capacity, purity, transition enthalpies, and reaction kinetics.