Description
The "Bouncing Ball" distillation demonstration uses a shaker frame with balls to represent molecules in different phases of matter, displayed on an overhead projector. By adjusting the shaking rate, the energy imparted to the balls changes, simulating temperature variations. At low shaking rates, the balls move slowly, resembling molecules in a liquid state with lower kinetic energy. Increasing the shaking rate mimics heating, causing the balls to move more vigorously, similar to molecules in a gas state with higher kinetic energy. This demonstration helps visualize the kinetic-molecular theory by showing how molecular motion varies with temperature and how energy distribution affects phase changes in matter.
Aliases
Kinetic-Molecular Theory, "Bouncing Ball" Distillation
PIRA DCS Number
4D30.20B
Preparation Time
30 minutes