PPolySim OS
For First Responders · Gas Process Kit

Gas Process Kit for a molecular collision

Built for first responders planning or training for real incidents. Run fast what-if scenarios for response planning and training — no software to install in the field. Simulate a molecular collision live below — adjust the inputs and watch it respond, right in your browser.

Ideal Gas Law (PV = nRT)Live
Pressure
104
kPa (1.03 atm)

Controls

Set moles, temperature, and volume — pressure follows from PV = nRT. Compress the volume or heat the gas and watch the pressure climb.

Presets

▶ Run in Python

Data Inspector

Pressure103.9 kPa
≈ atm1.03
Mean speed vs 300 K1.00x
LawPV = nRT

Governing equation

Reading this result: At 300 K, 1 mol in 24 L, PV = nRT gives about 103.9 kPa (1.03 atm). Mean molecular speed scales with the square root of temperature, so this gas moves about 1.00x as fast as it would at 300 K. Around room temperature the molecules carry moderate kinetic energy. Expanding the volume spreads the molecules out, lowering the collision rate and the pressure.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

2

Maxwell Boltzmann

open full solver →
Maxwell–Boltzmann DistributionLive

Controls

Gas molecules do not all move at one speed — they spread into this distribution. Heat the gas or lighten the molecule and the curve broadens and shifts faster.

Presets

▶ Run in Python

Data Inspector

Most probable0 m/s
Average0 m/s
RMS0 m/s

Governing equation

Reading this result: The peak (v_mp 0 m/s) sits below the average and RMS speeds because the long high-speed tail pulls those means upward.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

Gas in a Box — Kinetic TheoryLive

Controls

Pressure emerges from molecules hammering the walls. More particles or higher temperature → higher pressure, exactly as PV = nRT predicts.

Presets

▶ Run in Python

Data Inspector

Particles120
Temperature3.0
Pressure (wall)0
LawPV = nRT

Governing equation

Reading this result: Pressure scales with both particle count and temperature: doubling either roughly doubles the force on the walls (P ∝ nT).

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

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More with Gas Process Kit

Frequently asked questions

Is this good for first responders?
Yes — this version of "Gas Process Kit for a molecular collision" is framed for first responders planning or training for real incidents. Run fast what-if scenarios for response planning and training — no software to install in the field.
Do I need to install anything?
No. It runs in any modern browser, free, with no account required.