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Physics · Chemistry
Ideal gas: pressure, volume and temperature
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Each step advances 0.2 ps of model time.
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Tap a particle in the box to follow it. The highlight does not change its path.
Model notes
- Particles are hard spheres moving in a plane, colliding elastically with each other and with the walls; collisions are detected after each step.
- Temperature comes from the average kinetic energy, T = (2/3)·KE/k. Pressure is computed as p = NkT/V from the model's N, T and V, not measured from particles hitting the walls, so the simulation illustrates the gas laws rather than verifying them independently.
- The heater and cooler scale the velocity of every particle in the box after each step; heat transfer through the walls is not simulated.
- In Diffusion the two gases use their own particle model; changing a mass or temperature sets every particle of that gas to the same speed.