Particles and Pressure | Gases Data Lab | Virtual Science Teachers

Simulation: Gases Intro by PhET Interactive Simulations, University of Colorado Boulder, licensed under CC BY 4.0. Not loading? Open it in a new tab.

Lab question

How does the number of gas particles in a sealed container affect the pressure inside?

You change

Number of particles

Heavy counter, top right

You measure

Pressure (atm)

Pressure gauge

Locked so they stay the same

Temperature: 300 K Container width: 10 nm Kind of particle

How to collect data

The lab starts with 20 particles. Watch the pressure gauge for a few seconds.
Use the arrows on the Heavy counter to change the number of particles. Test each amount: 20406080100120
After each change, wait a few seconds and record the pressure.
Graph your data and look for a pattern.