RVFM-Kinetic-Theory-Model-RVFM-EDU038-This-model-provides-in-analogue-form-a-visual-representation-of-molecular-movement-in-gases-p-P-A-piston-in-a-wide-Perspex-tube-is-vibrated-by-a-low-voltage-electric-motor-housed-in-a-box-supporting-the-tube-Tiny-metal-spheres-simulating-gas-molecules-are-propelled-upwards-in-a-tube-by-the-piston-s-vibrations-The-movements-of-the-spheres-are-seen-to-be-random-both-in-direction-&-extent-p-P-The-motor-is-provided-with-a-speed-control-Higher-