Kinetic Theory Model, B2-2185.55, £68.00
The Kinetic Theory Model is used along with the Vibration Generator and comprises of piston, steel balls and a base of stainless steel for placing on an overhead projector.
View video of the KE model of a gas and also Brownian Motion.
Moving steel balls representing molecules bombard a plastic piston and suspend a plastic piston. Increasing the frequency of the Vibration Generator increases the average kinetic energy of the molecules - this is analogous to increasing the temperature of a gas. This results in the particles pushing the piston up i.e. the volume of the gas increases with temperature.
The diagrams opposite represent :
2 Gas under a piston
3 Gaseous state
4 Brownian motion
5 Boiling liquid