$begingroup$ The Maxwell distribution of velocities is valid in the thermodynamic equilibrium situation, but the above assumed experiment just isn't in thermodynamic equilibrium; it describes a gentle-state current of particles in a single route. Note the Wikipedia page states explicitly: The distribution is used for ``particle speeds in idealized gases https://02358amritsarkolkataexpre02234.timeblog.net/48231901/the-single-best-strategy-to-use-for-yash-storm-kolkata