How to play
First, drag the marked molecule to the cluster. The molecule collides the cluster and scater the molecules of the cluster. After the collision, the speed of molecules get faster and move freely. The state is called "Gas". If any molecule collides to the wall, the speed of it changes slower because of the wall absorb the energy. After many collision to the wall, the speed of molecules gets slower and make cluster again because of Intermolecule foece. And the state chenges to "Liquid' and "Solid" as the speed gets slower.
In this applet the potencial energy of Intermolecule force is set like the figure.
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