Key Differences:
* Particle Arrangement and Motion:
* Gas: Particles are widely spaced, move freely, and have high kinetic energy. They constantly collide with each other and the walls of their container.
* Liquid: Particles are closer together than in a gas but still have some freedom of movement. They exhibit fluid behavior.
* Solid: Particles are tightly packed in a fixed arrangement, vibrating in place but not able to move freely.
* Shape and Volume:
* Gas: Assumes the shape and volume of its container.
* Liquid: Has a definite volume but takes the shape of its container.
* Solid: Has a definite shape and volume.
* Compressibility:
* Gas: Highly compressible, as the particles have a lot of space between them.
* Liquid: Relatively incompressible, as the particles are closer together.
* Solid: Essentially incompressible.
In Summary:
The defining characteristic of a gas is the weak intermolecular forces between its particles. This allows them to move freely, fill any space they occupy, and be easily compressed. Liquids have stronger intermolecular forces, holding particles closer together, while solids have the strongest forces, locking particles into a rigid structure.
