THE PRACTICE STUDIO
Go slowly. Ask why. Make it yours.
PRACTICE / Kinetic interpretation of pressure
Opposite velocities still make pressure
An isotropic dilute gas at rest has mass density 0.60 kg/m³ and mean squared molecular speed 250,000 m²/s².
What absolute pressure follows from the kinetic model?
Organize the givens & assumptions
- ρ = 0.60 kg/m³
- Mean v² = 250,000 m²/s²
- Isotropic random motion
Classical ideal gas in equilibrium, elastic wall collisions, no bulk flow; the stated speed moment is relative to the bulk rest frame.
- A
- B
- C
- D
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