This experiment visualises the diffusion rates of different gases, demonstrating how molecular weight affects the speed at which gases spread. You can observe diffusion with and without buoyancy effects:

• Without Buoyancy: Observe pure diffusion based solely on molecular motion.
• With Buoyancy: See how gases with different densities move when buoyancy forces are applied (lighter gases rise, heavier gases sink).

Select different gases and toggle between modes to compare diffusion behaviours.