The Boltzmann constant is the proportionality factor that relates the average relative thermal energy of particles in a gas with the thermodynamic temperature of the gas. It occurs in the definitions
Ludwig Boltzmann, the constant's namesake
Max Planck, who discovered and named the constant
Boltzmann's grave in the Zentralfriedhof, Vienna, with bust and entropy formula.
Ludwig Eduard Boltzmann was an Austrian mathematician and theoretical physicist. His greatest achievements were the development of statistical mechanics and the statistical explanation of the second l
Boltzmann constant
…The Boltzmann constant has dimensions of energy divided by temperature, the same as entropy and heat capacity. It is named after the Austrian scientist Ludwig Boltzmann. As part of the 2019 revision of the SI, the Boltzmann constant is one of the seven "defining constants" that have been defined so as to have exact…
Ludwig Boltzmann and co-workers in Graz, 1887: (standing, from the left) Nernst, Streintz, Arrhenius, Hiecke, (sitting, from the left) Aulinger, Ettingshausen, Boltzmann, Klemenčič, Hausmanninger
Boltzmann's 1898 I2 molecule diagram showing atomic "sensitive region" (α, β) overlap
Boltzmann's bust in the courtyard arcade of the main building, University of Vienna