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For First Responders · Van der Waals Gas

Van der Waals Gas for a reaction rate

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 reaction rate live below — adjust the inputs and watch it respond, right in your browser.

Van der Waals Real GasLive

Controls

Presets

Real gases deviate from PV = nRT because molecules attract each other (the a term) and occupy volume (the b term). Van der Waals adds both corrections, and below the critical temperature the isotherm even loops — predicting condensation. Educational tool.

▶ Run in Python

Data Inspector

P at V=0.3 L (vdW)86.4 bar
P at V=0.3 L (ideal)88.7 bar
Deviation-3%

Governing equation

Reading this result: At 320 K the a and b corrections nearly cancel, so the real gas tracks the ideal-gas law to within 3%.

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

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Frequently asked questions

Is this good for first responders?
Yes — this version of "Van der Waals Gas for a reaction rate" 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.