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The latent heat of vaporization of mercury was found by Marignac to be 103 to 106.

3320The vaporization of a substance below its normal boiling-point can also be effected by blowing in steam or some other vapour; this operation is termed "distillation with steam."

2416Thus the heat of fusion of ice (for H 2 O=18 g) is 1440 cal., and the heat of vaporization of water at 100°, for the same quantity, 9670 cal.

810The difficulties arise in connexion with the determination of the quantities of ice melted or steam condensed, and in measuring the latent heat of fusion or vaporization in terms of other units for the comparison of observations.

812An objectionable feature of the system of allowing the vapour to escape from the still to the condenser through a loaded valve, viz: the irregularity of the distillation, is thus removed, and the benefits of regular vaporization and condensation under high pressure are obtained.

79For theoretical considerations see Vaporization, and for the most important application see Steam Engine; also Water.

711The substance is now placed on the support already mentioned, and the apparatus closed to the air by inserting the cork at D and turning the cock C. By turning or withdrawing the support the substance enters the bulb; and during its vaporization the free limb of the manometer is raised so as to maintain the mercury at a.

610Andrews's conception of the critical temperature of gases by defining the absolute boiling-point of a substance as the temperature at which cohesion and heat of vaporization become equal to zero and the liquid changes to vapour, irrespective of the pressure and volume.

610Again, pure sodium chloride melts at about 775° C., while sodium boils at 877° C., so that the margin of safety is but small if loss by vaporization is to be prevented.

511Its specific gravity is 3.18828 (r), latent heat of fusion 16.185 calories, latent heat of vaporization 45.6 calories, specific heat 0.1071.

46The weight of steam condensed on the body gives a means of calculating the quantity of heat required to raise it from the atmospheric temperature up to ioo° C. in terms of the latent heat of vaporization of steam at zoo° C. There can be no appreciable gain or loss of heat by radiation, if the admission of the steam is sufficiently rapid, since the walls of the enclosure are maintained at too C., very nearly.

49Another discussed conduction in curved sheets; a third the distribution of electricity in two influencing spheres; a fourth the deter mination of the constant on which depends the intensity of induced currents; while others were devoted to Ohm's law, the motion of electricity in submarine cables, induced magnetism, &c. In other papers, again, various miscellaneous topics were treated - the thermal conductivity of iron, crystalline reflection and refraction, certain propositions in the thermodynamics of solution and vaporization, &c. An important part of his work was contained in his Vorlesungen fiber mathematische Physik (1876), in which the principles of dynamics, as well as various special problems, were treated in a somewhat novel and original manner.

411This is chiefly due to the fact that in the former the heat of vaporization acquired in the refrigerator is rejected in the absorber, so that the whole heat of vaporization has to be supplied again by the steam in the generator.

37On the other hand, a great advantage is gained in the absorption machine by using the direct heat of the steam, without first converting it into mechanical work, for in this way its latent heat of vaporization can be utilized by condensing the steam in the coils and letting it escape in the form of water.

37and L 1 are the latent heats of vaporization of the solid and liquid respectively, the difference of which is equal to the latent heat of fusion L1.

38L, Latent heat of fusion or vaporization.

10The extent of this loss is determined by the relation between the liquid heat and the latent heat of vaporization at the refrigerator temperature.

15(2) The physical state of the reacting substances must be considered, since comparatively large amounts of heat are absorbed on fusion and on vaporization.

00These methods have reached their highest development in connexion with the determination of the mechanical equivalent of heat, but they may be applied with great advantage in connexion with other problems, such as the measurement of the variation of specific heat, or of latent heats of fusion or vaporization.

00A, 1901, " On The Variation Of The Specific Heat Of Water"; For Combustion Methods, See Article Thermochemistry, And Treatises By Thomsen, Pattison Muir And Berthelot; See Also Articles Thermodynamics And Vaporization.

00The quantity required per unit mass of the substance is termed the latent heat of vaporization.

00Latent heat of vaporization.

00The binding energy of a second layer of adsorbate molecules is similar to the latent heat of sublimation or vaporization of the adsorbate molecules is similar to the latent heat of sublimation or vaporization of the adsorbate.

00enthalpy of vaporization.

00(2) The physical state of the reacting substances must be considered, since comparatively large amounts of heat are absorbed on fusion and on vaporization.

00Thus the heat of fusion of ice (for H 2 O=18 g) is 1440 cal., and the heat of vaporization of water at 100Ã‚°, for the same quantity, 9670 cal.

00An objectionable feature of the system of allowing the vapour to escape from the still to the condenser through a loaded valve, viz: the irregularity of the distillation, is thus removed, and the benefits of regular vaporization and condensation under high pressure are obtained.

00For theoretical considerations see Vaporization, and for the most important application see Steam Engine; also Water.

00The latent heat of vaporization of mercury was found by Marignac to be 103 to 106.

00The vaporization of a substance below its normal boiling-point can also be effected by blowing in steam or some other vapour; this operation is termed "distillation with steam."

00A liquid boils when its vapour pressure equals the superincumbent pressure (see Vaporization); consequently any process which diminishes the external pressure must also lower the boiling-point.

00It may conveniently be called the Total Heat, by a slight extension of the meaning of a term which has been for a long time in use as applied to vapours (see Vaporization).

00This assumption represents qualitatively the theoretical isothermal of James Thomson (see Vaporization) and the phenomena of the critical state (see Condensation Of Gases); but the numerical results to which it leads differ so widely from experiment that it is necessary to suppose the constant, a, to be a function of the temperature.

00(See Vaporization, § 16.) The expression for R logp for an imperfect gas of this type differs from that for a perfect gas only by the addition of the term (c - b) p/D.

00L, Latent heat of fusion or vaporization.

00The substance is now placed on the support already mentioned, and the apparatus closed to the air by inserting the cork at D and turning the cock C. By turning or withdrawing the support the substance enters the bulb; and during its vaporization the free limb of the manometer is raised so as to maintain the mercury at a.

00Again, pure sodium chloride melts at about 775Ã‚° C., while sodium boils at 877Ã‚° C., so that the margin of safety is but small if loss by vaporization is to be prevented.

00Its latent heat of fusion is 11 7 calories, and its latent heat of vaporization is 23.95 calories (P. A.

00Andrews's conception of the critical temperature of gases by defining the absolute boiling-point of a substance as the temperature at which cohesion and heat of vaporization become equal to zero and the liquid changes to vapour, irrespective of the pressure and volume.

00The difficulties arise in connexion with the determination of the quantities of ice melted or steam condensed, and in measuring the latent heat of fusion or vaporization in terms of other units for the comparison of observations.

00The weight of steam condensed on the body gives a means of calculating the quantity of heat required to raise it from the atmospheric temperature up to iooÃ‚° C. in terms of the latent heat of vaporization of steam at zooÃ‚° C. There can be no appreciable gain or loss of heat by radiation, if the admission of the steam is sufficiently rapid, since the walls of the enclosure are maintained at too C., very nearly.

00These methods have reached their highest development in connexion with the determination of the mechanical equivalent of heat, but they may be applied with great advantage in connexion with other problems, such as the measurement of the variation of specific heat, or of latent heats of fusion or vaporization.

00A, 1901, " On The Variation Of The Specific Heat Of Water"; For Combustion Methods, See Article Thermochemistry, And Treatises By Thomsen, Pattison Muir And Berthelot; See Also Articles Thermodynamics And Vaporization.

00The quantity required per unit mass of the substance is termed the latent heat of vaporization.

00and L 1 are the latent heats of vaporization of the solid and liquid respectively, the difference of which is equal to the latent heat of fusion L1.

00Latent heat of vaporization.

00Another discussed conduction in curved sheets; a third the distribution of electricity in two influencing spheres; a fourth the deter mination of the constant on which depends the intensity of induced currents; while others were devoted to Ohm's law, the motion of electricity in submarine cables, induced magnetism, &c. In other papers, again, various miscellaneous topics were treated - the thermal conductivity of iron, crystalline reflection and refraction, certain propositions in the thermodynamics of solution and vaporization, &c. An important part of his work was contained in his Vorlesungen fiber mathematische Physik (1876), in which the principles of dynamics, as well as various special problems, were treated in a somewhat novel and original manner.

00Generally, if a solid be heated to a certain temperature, it melts or fuses, assuming the liquid condition (see Fusion); if the heating be continued the liquid boils and becomes a vapour (see Vaporization).

00Its specific gravity is 3.18828 (r), latent heat of fusion 16.185 calories, latent heat of vaporization 45.6 calories, specific heat 0.1071.

00The extent of this loss is determined by the relation between the liquid heat and the latent heat of vaporization at the refrigerator temperature.

00This is chiefly due to the fact that in the former the heat of vaporization acquired in the refrigerator is rejected in the absorber, so that the whole heat of vaporization has to be supplied again by the steam in the generator.

00On the other hand, a great advantage is gained in the absorption machine by using the direct heat of the steam, without first converting it into mechanical work, for in this way its latent heat of vaporization can be utilized by condensing the steam in the coils and letting it escape in the form of water.

00Cinnamon Leaf Oil - This unique essential oil can be used in vaporization, as well as for massage.

00

The word usage examples above have been gathered from various sources to reflect current and historial usage. They do not represent the opinions of YourDictionary.com.