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Pressure-Volume Isotherms of He4 below 4.2°K

William E. Keller

  • University of California, Los Alamos Scientific Laboratory, Los Alamos, New Mexico

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Phys. Rev. 97, 1 – Published 1 January, 1955Erratum Phys. Rev. 100, 1790 (1955)

DOI: https://doi.org/10.1103/PhysRev.97.1

Abstract

A description is presented of a new apparatus for obtaining PV isotherms at very low temperatures, along with results of measurements on five isotherms at 3.961, 3.348, 2.862, 2.324, and 2.154°K for He4 gas; the second virial coefficients, B, at these respective temperatures were found to be -83.70, -103.4, -123.6, -157.7, and -176.4 cc/mole. The reliability of previous data as well as of the several analytical treatments of the data is discussed, the conslusion being with respect to the latter that the He4 isotherms below 4°K can be best represented by the equation PVN=RT(1+BNV). When both the previous and the present data are analyzed in this way, a consistent set of values for B is obtained. From the values of RT measured here, corrections to the 1948 temperature scale are obtained in good agreement with modifications suggested by other authors.

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Erratum

Pressure-Volume Isotherms of He4 below 4.2° K

William E. Keller
Phys. Rev. 100, 1790 (1955)

References (17)

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Phys. Rev. 97, 1– Published 1 January, 1955
  • Received 23 September 1954

© 1955 American Physical Society

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