Measurement of the Universal Gas ConstantUsing a Spherical Acoustic Resonator
- 25 January 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 60 (4) , 249-252
- https://doi.org/10.1103/physrevlett.60.249
Abstract
We report a new value for the universal gas constant J . The standard error of has been reduced by a factor of 5, to 1.7 ppm. was determined from the speed of sound in argon contained within a thick, spherical shell at the temperature of the triple point of water . The volume of the shell was measured by our weighing the mercury required to fill it at . 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.
Keywords
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