Do I need to install anything?

No. It runs in any modern browser, free, with no account required.

For First Responders · Combustion Analyzer

Combustion Analyzer for a diffusion

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

Ideal Gas

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Ideal Gas Law (PV = nRT)Live

pressure · volume · temperature · moles

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

Moles (n)

Temperature (K)

Volume (L)

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Data Inspector

Pressure103.9 kPa

≈ atm1.03

Mean speed vs 300 K1.00x

LawPV = nRT

Governing equation

P V = n R T : 103.9 kPa \times 24 L = 1 mol \times 8.314 \times 300 K

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.

↓

Maxwell Boltzmann

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Maxwell–Boltzmann DistributionLive

molecular speeds in a gas

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

Temperature (K)

Molar mass (g/mol)

▶ Run in Python

Data Inspector

Most probable0 m/s

Average0 m/s

RMS0 m/s

Governing equation

f (v) = 4 π (\frac{m}{2 π k T})^{3/2} v^{2} e^{- m v^{2} /2 k T}, v_{p} = \frac{2 k T}{m} = 0 m/s at T = 300 K

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.

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Frequently asked questions

Is this good for first responders?: Yes — this version of "Combustion Analyzer for a diffusion" 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.