Molar gas constant: Difference between revisions
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imported>Paul Wormer (New page: In chemistry and physics, the '''molar gas constant''' ''R'' is a physical constant with the value:<ref>Obtained on 16 December, 2007 from [http://physics.nist.gov/cgi-bin/cuu/Valu...) |
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In [[chemistry]] and [[physics]], the '''molar gas constant''' ''R'' is a physical constant with the value:<ref>Obtained on 16 December, 2007 from [http://physics.nist.gov/cgi-bin/cuu/Value?r NIST]</ref> 8.314 472  J mol<sup>−1</sup>K<sup>−1</sup>. | In [[chemistry]] and [[physics]], the '''molar gas constant''' ''R'' is a physical constant with the value:<ref>Obtained on 16 December, 2007 from [http://physics.nist.gov/cgi-bin/cuu/Value?r NIST]</ref> 8.314 472  J mol<sup>−1</sup>K<sup>−1</sup>. | ||
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Revision as of 17:16, 27 January 2008
In chemistry and physics, the molar gas constant R is a physical constant with the value:[1] 8.314 472 J mol−1K−1.
The constant R is equal to the Boltzmann constant times Avogadro's constant: R = kBNA.
The constant arises in equations of state, most notably in the ideal gas law
where p is the pressure, Vm the molar volume, and T the absolute temperature of the ideal gas.