Particles gain more kinetic energy so vibrate more
Limitations of the 3D model
Can be confusing when there are lots of atoms
They don’t show electrons
Hard to draw
Condensation
Gas —> Liquid
Melting
Solid —> liquid
Why does heating cause a solid to change to a liquid
Strong attractive forces holding the particles in place gain kinetic energy and vibrate faster making them overcome the forces holding them together melting into a liquid
