Molecular Motion Demo - Diffusion

Purpose

To model gas diffusion.
 

Equipment

E.M.E. Molecular Motion Demonstrator with accessories as pictured.

 

Images

i6-3

Description

A set of small balls of varying mass models the air. The balls are set into motion by vibration of the walls with the device tilted. A diffusion barrier with two small slots is positioned in the center of the device with six small balls on one side and six large balls on the other side. The balls will mix, representing diffusion. Differences between smaller and larger balls can be observed, and fluctuations can be discussed.