Boltzmann constant

For the constant pertaining to energy of black body radiation see Stefan–Boltzmann constant

 Values of k Units   J K−1   eV K−1    erg K−1

The Boltzmann constant (k or kB) is a physical constant. It is defined to be  J/K. It relates the average kinetic energy of a particle in a gas with the temperature of the gas. It is the gas constant R divided by the Avogadro constant NA:

The Boltzmann constant has SI units of J⋅K−1 (also written J/K), the same as entropy. It is named after the Austrian physicist Ludwig Boltzmann.

References

Category:Thermodynamics
Category:Physics