| Measure | Value |
|---|
Values follow PV = nRT with R = 0.08206 L·atm/(mol·K). Particles move far slower than real molecules. The cylinder height is drawn on a squeezed scale so small volumes stay visible; the graphs and numbers are exact.
| Measure | Gas A | Gas B |
|---|
Speeds are sampled from the Maxwell-Boltzmann distribution. Particles are drawn about 10,000 times slower than real molecules. The race uses a small number of particles, so the measured ratio wobbles around Graham's prediction.
The picture updates with the answer you type. The worked solution shows every unit cancelling, and kelvin conversions are flagged in gold.
Your job
Drag a card onto a box, or tap a card and then tap the box's name. Cards are buttons, so Tab and Enter work too.
Teaching models with rounded values. Not medical or diving advice.
Wrong picks are fine here. Each one tells you why.