Boltzmann constant

https://doi.org/10.1351/goldbook.B00695
Fundamental physical constant: \(k = \frac{R}{L} = 1.380\ 6504 \left(24\right)\times 10^{-23}\ \text{J K}^{-1}\), where \(R\) is the @G02579@ and \(L\) the @A00543@.
Sources:
CODATA 2006 [Terms] [Book]
PAC, 1996, 68, 957. (Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)) on page 963 [Terms] [Paper]