Vapour pressure of liquid nitrogen
โ Scribed by A. Michels; T. Wassenaar; W. De Graaff; Chr. Prins
- Publisher
- Elsevier Science
- Year
- 1953
- Weight
- 105 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0031-8914
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โฆ Synopsis
Synopsis
The vapour pressure of liquid nitrogen has been measured between -176ยฐC
and -148ยฐC.
The results are represented as a function of temperature by a formula, containing four constants.
๐ SIMILAR VOLUMES
Comprehensive and accurate measurements of the saturated-liquid and saturated-vapour densities together with the vapour pressure of pure nitrogen were carried out from the temperature T = 64 K (triple-point temperature Tt = 63.151 K) to 0.022 K below the critical temperature. The typical values of t
## ยดลฝ . New vapour pressure data for cyclopropane c-C H were obtained in the temperature 3 6 range from 170 K to 225 K. The experimental data were fitted with an equation of the type . . 2 2 ลฝ . ลฝ . ลฝ . ลฝ . ลฝ . ln prkPa s A q Br TrK q C TrK q D T rK , yielding A s 3.70 " 2.13 , B s . y2 . y4 ลฝ . ลฝ
The vapour pressure of liquid D2S and the difference between the vapour pressures of liquid H2S and D2S have been measured at 22 temperatures in the T = (193 to 230) K range. The vapour pressure data, corrected to 100 per cent isotopic purity, have been fitted with the equation: (T/K)โขlnr = -29.385