Definition:Boltzmann's Constant/Value

Boltzmann's Constant: Value

The value of Boltzmann's constant is defined to be exactly:

\(\ds k\)

\(=\)

\(\ds 1 \cdotp 38064 \, 9 \times 10^{-23} \, \mathrm {J \, K^{-1} }\)

exactly

\(\quad\) This sequence is A070063 in the On-Line Encyclopedia of Integer Sequences (N. J. A. Sloane (Ed.), 2008).

\(\ds \)

\(=\)

\(\ds 1 \cdotp 38064 \, 9 \times 10^{-16} \, \mathrm {erg \, K^{-1} }\)

exactly

Sources

• 1964: Milton Abramowitz and Irene A. Stegun: Handbook of Mathematical Functions ... (previous) ... (next): $2$. Physical Constants and Conversion Factors: Table $2.3$ Adjusted Values of Constants

which gives the mantissa as $1 \cdotp 380 \, 622$, with an uncertainty of $\pm 59$ corresponding to the $2$ least significant figures

• 1969: J.C. Anderson, D.M. Hum, B.G. Neal and J.H. Whitelaw: Data and Formulae for Engineering Students (2nd ed.) ... (previous) ... (next): $3.$ Physical Constants