Results 221 to 230 of about 2,532,436 (279)

Weather data sources influence predictive performance of disease forecasting models. [PDF]

open access: yesInt J Biometeorol
Mensah TA   +3 more
europepmc   +1 more source

The vapour pressure of water

The Journal of Chemical Thermodynamics, 1972
Abstract A new equation, in the form of a Chebyshev polynomial, is given for the representation of the vapour pressure of water. In the computation of the coefficients of this equation account was taken of changes consequent upon the adoption of the International Practical Temperature Scale of 1968 and also of new values which have been published for
D Ambrose, I.J Lawrenson
openaire   +1 more source

Vapour pressure of trideuterioammonia

The Journal of Chemical Thermodynamics, 1992
The H-to-D vapour-pressure isotope effect in liquid ammonia has been measured at 62 temperatures between 228 K and 260 K. The vapour pressures, corrected to 100 per cent nuclidic parity, have been fitted to the equation: T ln r = A + B/T + CT , where r is the vapourpressure ratio p (NH 3 )/ p (ND 3 ).
J.C.G. Calado   +2 more
openaire   +1 more source

The vapour pressure of mercury

The Journal of Chemical Thermodynamics, 1972
Abstract The vapour pressure of mercury has been determined ebulliometrically over the range 0.05 to 800 kPa (380 to 770 K): above 3 kPa (480 K) by the comparative method with water as the standard, and below 5 kPa by direct measurement of the pressure with a mercury manometer.
D. Ambrose, C.H.S. Sprake
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Reference values of vapour pressure the vapour pressures of benzene and hexafluorobenzene

The Journal of Chemical Thermodynamics, 1981
Abstract The vapour pressures of benzene and hexafluorobenzene in the range 10 to 100 kPa were measured in the course of developing a comparative ebulliometric apparatus, and the results of four sets of measurements on benzene and of one on hexafluorobenzene are given.
openaire   +1 more source

The vapour pressure of tetrafluoromethane

Cryogenics, 1979
Abstract The vapour pressure of tetrafluoromethane has been measured at its triple-point temperature (89.56 K), and at six higher temperatures up to 173 K. These temperatures were those of the triple-points of six pure substances which had previously been carefully determined and which have been corrected to IPTS-68.
L.Q. Lobo, L.A.K. Staveley
openaire   +1 more source

The vapour pressure of WCl6

The Journal of Chemical Thermodynamics, 1992
The vapour pressure of solid and liquid WCl6 has been measured by the Bourdon-spoon-gauge technique at temperatures from 463 K to 564 K. A third-law analysis yielded for the enthalpy of sublimation ΔsubHom(298.15 K) = (100.5±0.2) kJ·mol−1, in good agreement with the results derived from previous measurements.
E.H.P. Cordfunke, R.J.M. Konings
openaire   +1 more source

The vapour pressure of ethylene

Physica, 1950
Abstract The vapour pressure of C 2 H 4 has been measured between −125°C and +8°C and it is represented as a function of temperature by a formula, containing four constants: 10 log P = A T + B 10 log T + CT + D, where A = −1243·766, B = −11·213927, C = 0·01102331, D = 30·470741. .
A. Michels, T. Wassenaar
openaire   +1 more source

Vapour pressures and their estimation

Recueil des Travaux Chimiques des Pays-Bas, 1965
AbstractIt is proposed that for liquid unassociated compounds well below their critical temperaturesLog p/pb) = Log Vg/VL)b where p and pb are vapour pressures at the absolute temperature T and at the boiling point Tb respectively; Vg and VL are the molecular volumes of the compound in the vapour and liquid phases (the figures here referring to the ...
openaire   +1 more source

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