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