Question

How does the particle arrangement and movement change? How does the particles behave in a liquid and how that changes when it becomes a gas.

Answer 1

The particles in a liquid are loosely packed and occupies and moves much more freely than particles in solids, and when liquid changes to gas the particles becomes even more free. The arrangement of particles in both gases is more loose and free than in solids. There is an irregular arrangement that allows for more movement between particles.