latent heat of vaporization


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latent heat of vaporization

[′lāt·ənt ¦hēt əv ‚vā·pə·rə′zā·shən]
(thermodynamics)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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where [e.sub.0] is the reference pressure (611.12 Pa), [l.sub.[upsilon]0] is the latent heat of vaporization at 0[degrees]C (2.5008 x [10.sup.6] J [kg.sup.-1]), [R.sub.[upsilon]] is the individual gas constant for water vapor (461.2 J [kg.sup.-1] [K.sup.-1]), [T.sub.0] is the reference temperature at the triple point of water (273.16 K), T is the in situ temperature (K), c is the specific heat of liquid water at 0[degrees]C (4,215 J [kg.sup.-1] [K.sup.-1]), and [c.sup.vapor.sub.p] is the specific heat of water vapor at constant pressure (1,844.8 J [kg.sup.-1] [K.sup.-1]) (Miller 2015).
Thus, the gas gives up the latent heat of vaporization and moves heat from the input to the output end of the heat pipe.
Where, [m.sub.1] is the total mass including the stock, [C.sub.p] is the specific heat of the paper, T the boiling point of the respective carrier fluid (water or solvent), [m.sub.2] the mass corresponding to the ink film and [delta]H is the latent heat of vaporization of the solvent.
In this case, the latent heat of vaporization from the primary kiln's water vapor is captured by the heat exchangers and is transferred to the secondary kiln.
This phenomenon, known as the latent heat of vaporization, is the same reason a warm breeze feels cool after a swim.
Values for latent heat of vaporization computed with IAPWS-IF97 can vary considerably from those computed with IFC-67.
It has extreme (or close to extreme) values among liquids of heat capacity; latent heat of vaporization; dielectric constant; surface tension; tensile strength; thermal conductivity; chemical dissociation (into hydrogen and hydroxyl ions); compressibility; thermal expansion properties; volume change on freezing; and friction of its solid phase (ice).
Latent heat of vaporization of water is 974 Btu/lb = 540 kcal/kg