Maxwell-Boltzmann Speed Distribution

Gas particles in a box collide elastically. The steady-state speed distribution follows f(v) = 4π(m/2πkT)^(3/2) v² e^(−mv²/2kT). The peak (most probable speed), mean, and RMS speeds all scale as √(kT/m).

Theory predictions v_mp =
v_mean =
v_rms =
kT =
Simulation Mean speed:
RMS speed:
Mean KE:
Theory 3kT/2: