Skip to main content

Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.

  • Letter
  • Published:

Energy of the Hg—C Bond and The Heat of Atomization of Carbon

Nature volume 156, pages 599–600 (1945)Cite this article

Abstract

IT has not yet been possible to make a final choice, from spectroscopic and vapour pressure data, between the two alternative values of 124·3 and 170·6 kilocalories/gram atom for the heat of atomization of carbon (ΔH291°K. for the change Cdiamond → Cgas)1, though the most recent treatment favours the higher value2, and this also makes easier the correlation of some kinetic and thermochemical data3.

This is a preview of subscription content, access via your institution

Access options

Buy this article

  • Purchase on Springer Link
  • Instant access to full article PDF
Buy now

Prices may be subject to local taxes which are calculated during checkout

References

  1. See Skinner, H. A., Trans. Faraday Soc., 41 (1945, in the press). The two values for the & Delta;H291°K for the diamond atomization are derived from the two alternative values for DZ(CO) to 9.10 eV. and 11.11 eV. The fact that the use of the new conversion factors now raises the lower value of DZ(CO) to 9.14 eV. does not affect the treatment given here.

  2. Gaydon, A. G., and Penney, W. G., Proc. Roy. Soc., A, 183, 374 (1945).

    ADS  CAS  Google Scholar 

  3. Baughan, E. C., Nature, 147, 542 (1941).

    Article  ADS  CAS  Google Scholar 

  4. Berthelot, M., C.R. Acad. Sci., 129, 918 (1899).

    Google Scholar 

  5. Pauling, L., œNature of the Chemical Bond (Ithaca 2nd Ed., 1940), 54.

    Google Scholar 

  6. Bichowsky, F. R., and Rossini, F. D., œThermochemistry of Chemical Substances (New York, 1936), 69.

    Google Scholar 

  7. Pauling, op. cit., 53.

  8. Pauling, op. cit, 131.

  9. Pauling, op. cit., 136.

  10. Latent heat of fusion for the diphenyl from melting point by Walden's rule (Z. Elektrochem., 14, 715; 1908). Latent heats of evaporation (at 25°) by assuming a Trouton constant of 21.

  11. Horn, E., Polanyi, M., and Sattler, H., Z. phys. Chem., B, 17, 220 (1932). Wieland, K., Z. phys. Qhem., B, 42, 422 (1939). Butler, E. T., and Polanyi, M., Trans. Faraday Soc, 39, 19 (1943).

    Google Scholar 

  12. Pauling, ref. 7; but see Skinner, ref. 1.

  13. Krishnamurti, P., Ind. J. Phys., 5, 633 (1930).

    CAS  Google Scholar 

Download references

Rights and permissions

Reprints and permissions

About this article

Cite this article

Energy of the Hg—C Bond and The Heat of Atomization of Carbon. Nature 156, 599–600 (1945). https://doi.org/10.1038/156599b0

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1038/156599b0

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.

Search

Advanced search

Quick links

Nature Briefing

Sign up for the Nature Briefing newsletter — what matters in science, free to your inbox daily.

Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing