Journal article
Measurement of the universal gas constant R using a spherical acoustic resonator
Physical Review Letters, Vol.60(4), pp.249-252
1988
Abstract
We report a new value for the universal gas constant R:8.3144710.000014 J mol-1 K-1. The standard error of R has been reduced by a factor of 5, to 1.7 ppm. R was determined from the speed of sound in argon contained within a thick, spherical shell at the temperature of the triple point of water Tt. The volume of the shell was measured by our weighing the mercury required to fill it at Tt. The molar mass of the argon was determined relative to that of a standard with accurately known chemical and isotopic composition by use of speed-of-sound data.
Details
- Title
- Measurement of the universal gas constant R using a spherical acoustic resonator
- Authors/Creators
- M.R. Moldover (Author/Creator) - National Institute of Standards and TechnologyJ.P.M. Trusler (Author/Creator) - National Institute of Standards and TechnologyT.J. Edwards (Author/Creator) - National Institute of Standards and TechnologyJ.B. Mehl (Author/Creator) - University of DelawareR.S. Davis (Author/Creator) - National Institute of Standards and Technology
- Publication Details
- Physical Review Letters, Vol.60(4), pp.249-252
- Publisher
- American Physical Society
- Identifiers
- 991005540041007891
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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- 5 Physics
- 5.302 Instrumentation
- 5.302.1766 Radiation Thermometry
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- Physics, Multidisciplinary
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