Consider an ideal gas system consisting of a large number of particles. The nature of the macroscopic system could not be described in detail. It could only be described in terms of averages, . only the mean values of the thermodynamic quantities characteristic of the medium of the macro system. The average values of the thermodynamic quantities characterizing the macroscopic state of the system such as state equation, free energy, the internal energy, etc. could be calculated by Boltzman distribution function. |
