Watch a gas of particles reach thermal equilibrium — speed distribution converges to Maxwell-Boltzmann
Particle Box
Speed Distribution vs Maxwell-Boltzmann
100Particles
300Temperature (K)
0Collisions
—Mean Speed
2D ideal gas with elastic collisions. Particles start with the same speed (non-equilibrium) and collide, exchanging momentum. Speed distribution converges to Maxwell-Boltzmann: f(v) ∝ v·exp(−mv²/2kT). Color shows speed: blue=slow, red=fast. The theoretical MB curve (dashed) matches the simulation distribution at equilibrium.