Measuring the Temperature Distribution in Gas Columns

Graeff, Roderich W.

doi:doi:10.1063/1.1523808

Volume/Page
Keyword
Citation
Advanced

Volume: Page/Article:

Search Content Type

Citation:

AIP Conference Proceedings / Volume 643

Previous Article | Next Article

LOG IN or SELECT A PURCHASE OPTION:

Buy PDF

Rent Article

Permissions / Reprints

Measuring the Temperature Distribution in Gas Columns

AIP Conf. Proc. 643, pp. 225-230; doi:http://dx.doi.org/10.1063/1.1523808 (6 pages)

QUANTUM LIMITS TO THE SECOND LAW: First International Conference on Quantum Limits to the Second Law

Date: 29-31 July 2002

Location: San Diego, California (USA)

Roderich W. Graeff^1,2

¹International Licensing, Prof.‐Domagk‐Weg 7, D‐78126 Königsfeld, Germany
²102 Savage Farm Drive, Ithaca, NY 14850‐6500

Alerts
- Alert Me When Cited
- Alert Me When Corrected
Tools
Share
- Email Abstract
- CiteULike
- del.icio.us
- BibSonomy
- Tweet this Article
- Add to Facebook

Abstract

Related Content

Late in the 19th century J. Loschmidt believed that a vertical column of gas in an isolated system would show a temperature gradient under the influence of gravity, cold at the top and warm at the bottom. L.Boltzmann and J.C. Maxwell disagreed. Their theories tried to prove an equal temperature over height. Experiments with various test setups are being presented which seem to strenghten the position of Loschmidt. Longterm measurements at room temperature show average temperature gradients of up to 0,07 °K/m in the walls of the enclosure, cold at the top and warm at the bottom. The measured values can be explained by the conversion of the potential energy of the molecules into an increase of their average speed through gravity. © 2002 American Institute of Physics