Fundamental Postulates Of The Statistical Mechanics:

The fundamental postulates of the statistical mechanics are:

1. All gases are composed of molecules which are in a state of constant random motion.
2. The total number of molecules in a gas is constant.
3. The total energy of the system is constant.
4. All the elementary quantum states are of the same size.
5. All the accessibly microstates corresponding to possible microstates are equally probable.
6. The equilibrium state of a system corresponds to the state of maximum probability.