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The vapour pressure of liquid helium from the λ-point to 1.3°K

✍ Scribed by J. Kistemaker

Publisher
Elsevier Science
Year
1946
Weight
352 KB
Volume
12
Category
Article
ISSN
0031-8914

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✦ Synopsis

Vapour pressures have been determined from the ?,-point to 1.3°K and the results of our measurements of isotherms in the same region have been compared with these measurements. A provisional table with corrections to the temperature scale 1937 2) has been deduced from them, giving a negative deviation from the scale 1937 at the ),-point of 0.013 of a degree which decreases linearly to zero at 1.55°K. From there on a close agreement with Bleane y and Simon's scale 3) seems probable. A discussion of the possible errors in Keesom and Schmidt's measurements is given. *) For a description of the apparatus see 6).

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