Gaseous properties refer to the characteristics of gases, which differ significantly from solids and liquids. Gases have no fixed shape or volume, meaning they expand to fill their container. They are composed of particles that are far apart and move freely, resulting in low density and high compressibility. Another key property of gases is their ability to diffuse, or spread out, quickly in response to concentration differences. This occurs because gas particles move rapidly and collide with one another. Additionally, gases exert pressure on their surroundings, which is influenced by factors such as temperature and volume, as described by Boyle's Law and Charles's Law.