Kinetic Theory Pressure (P = (1/3) ρ ⟨c²⟩ = (1/3)(N/V) m v_rms²)
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P = (1/3) ρ ⟨c²⟩ = (1/3)(N/V) m v_rms²
What each symbol means
| Symbol | What it stands for |
|---|---|
| P | Pressure |
| m | Molecular mass (kg) |
| ρ | Mass density |
| N/V | Number density |
| v_rms | Root-mean-square speed |
When to use this
Ideal gas; isotropic velocity distribution; elastic collisions with walls.