* Particle Spacing: Gas molecules are far apart compared to liquids and solids. They have weak intermolecular forces, allowing them to move freely and independently.
* Kinetic Energy: Gas molecules have high kinetic energy, constantly moving and colliding with each other and the walls of their container.
* Compressibility: Due to the large spaces between molecules, gas can be easily compressed. When pressure is applied, the molecules are forced closer together, reducing the overall volume.
Example: Imagine a balloon. When you blow air into it, the gas molecules fill the entire space within the balloon. If you squeeze the balloon, the gas molecules are compressed, and the volume of the balloon decreases.
In summary:
* Gas molecules are not fixed in a specific arrangement, unlike solids and liquids.
* They can expand to fill the entire volume of their container due to their high kinetic energy and weak intermolecular forces.
* While gas can be compressed, it doesn't mean it has no volume, just that the volume is not fixed and can change depending on the pressure and temperature.
