Kinetic Theory Topic

Smoke particles in a sealed cell display continuous random jittering from collisions with air molecules, providing direct visual evidence for kinetic molecular theory. Students observe that thermal motion is perpetual …

Models Brownian motion using a mechanically agitated platform: small spheres (gas molecules) randomly collide with a larger disk (dust particle), producing visible jittering motion. Demonstrates that random molecular collisions produce …

A vibrating frame on an overhead projector drives steel ball bearings to model molecular motion. Students see how temperature (motor speed), pressure (wall collisions), and volume relationships emerge from microscopic …

A mechanical analog of diffusion through a semi-permeable membrane. Steel balls of different sizes are agitated in a compartmented container; small balls pass through holes in the central partition while …