Letter | Published:

Activities of Life and the Second Law of Thermodynamics

Nature volume 134, page 255 (18 August 1934) | Download Citation

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Abstract

IN his last letter1, Sir James Jeans writes: “It is a well-known, and indeed obvious, fact that entropy has different values according as it is measured with reference to atoms or molecules or other units.” If by entropy he means the absolute entropy of a given state of a system, his remark, though true, has no bearing whatever on the point at issue. If, on the other hand, he means the entropy change in some definite process, such as the sorting out of trucks, then we suggest that he is unique amongst physicists in holding this opinion.

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References

  1. 1.

    NATURE, 133, 986 June 30, 1934.

  2. 2.

    NATURE, 133, 530 April 7, 1934. 133, 869, June 9, 1934.

  3. 3.

    NATURE, 133, 612 April 21, 1934.

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Author information

Affiliations

  1. University College, London.

    • F. G. DONNAN
  2. University of Reading. April 21.

    • E. A. GUGGENHEIM

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DOI

https://doi.org/10.1038/134255b0

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