Boltzmann constant facts for kids

Kids Encyclopedia Facts
For the constant pertaining to energy of black body radiation see Stefan–Boltzmann constant
Values of k Units
1.3806488(13)×10−23 JK−1
8.6173324(78)×10−5 eV K−1
1.3806488(13)×10−16 erg K−1

The Boltzmann constant (k or kB) is the physical constant relating energy at the individual particle level with temperature, which can only be observed at the collective or bulk level. It is the gas constant R divided by the Avogadro constant NA:

k = \frac{R}{N_{\rm A}}\,

It has the same units as entropy. It is named after the Austrian physicist Ludwig Boltzmann.

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Boltzmann constant Facts for Kids. Kiddle Encyclopedia.