# Formula Boltzmann Distribution Function Probability    Energy    Chemical potential    Temperature

## Probability

Unit
The occupation probability indicates with which probability $$P$$ a state with energy $$W$$ at temperature $$T$$ is occupied by a particle (for example high temperature electron gas).

## Energy

Unit
Energy of a gas particle

## Chemical potential

Unit
Chemical potential indicates the change in internal energy when the number of particles of the classical gas changes.

## Temperature

Unit
Absolute temperature of the gas.

## Boltzmann Constant

Unit
Boltzmann constant is a physical constant from many-particle physics and has the following exact value:$$k_{\text B} ~=~ 1.380 \, 649 ~\cdot~ 10^{-23} \, \frac{\mathrm{J}}{\mathrm{K}}$$