Chapter 7.1 · Simulation

Temperature and Particle Speed

How to use: Pick a gas. Slide the temperature from 200 K to 600 K. Read the average speed.

Particle box

Arrow length shows speed. Histogram: filled bars are the gas you picked. The dashed outline is the other gas. The vertical bar marks the average speed.

Controls

Temperature (K)300
Molar mass (kg/mol)0.02802
Average speed (m/s)517

Sample data note: values are for teaching. Speed is the root-mean-square speed, v = √(3RT/M), with R = 8.314 J/(mol·K) and M in kg/mol (N₂ 0.02802, He 0.00400). Particle motion on screen is slowed down.