When they are hotter.
gas
well that is easy. It is gas because it can travel one side ti the other side of an average size family living room is 0.0003257949 per milliseconds
Molecules of gas have higher average kinetic energy compared to molecules in liquids, which allows them to move at faster speeds. Additionally, gases have greater spacing between molecules and weaker intermolecular forces, leading to more frequent collisions and higher velocities in gases compared to liquids.
Gases travel at different speeds due to variations in their molecular mass, with lighter molecules moving faster than heavier ones. The speed of gas molecules is also influenced by temperature, with higher temperatures generally causing faster molecular motion. Additionally, the presence of other gases or obstacles may impact the speed at which gas molecules can travel.
Sound waves travel faster in solids than in a gas, because the molecules are more closely coupled together (it is a solid remember?) and are more densely packed than in a gas (where they are free to wander).
The state of matter with the fastest molecules is the gas phase. In gases, the molecules move randomly and have the highest average kinetic energy, resulting in faster speeds compared to liquids and solids.
the air molecules are moving faster
Light travels faster through gas compared to other mediums because gas molecules are farther apart, allowing light to travel through with less interference or absorption. In solids and liquids, the molecules are closer together, resulting in more interactions that slow down the speed of light.
When the liquid molecules are heated, they move faster so the liquid boils and some molecules becomes gas molecules. When the liquid molecules are heated, they move faster so the liquid boils and some molecules becomes gas molecules.
gas particals
Sound travels faster through liquids than gases because the molecules in liquids are closer together, allowing sound waves to propagate more quickly.
This gas is hydrogen, a gas with small molecules.