Root-Mean-Square Speed (v_rms = sqrt(3RT/M))
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v_rms = sqrt(3RT/M)
What each symbol means
| Symbol | What it stands for |
|---|---|
| M | Molar mass in kg mol⁻¹ for SI |
| R | 8.314 J mol⁻¹ K⁻¹ |
| T | Temperature (K) |
| v_rms | Root-mean-square speed (m/s if SI) |
When to use this
Ideal gas; equipartition for monatomic translational KE; √(⟨c²⟩).