Molecules of a gas are in permanent motion.
The molecules in a solid have less energy than those in gases and liquids. They vibrate about fixed positions. Their inter molecular forces are very strong compared to liquids and gases.
When molecules in liquids and gases are heated they move faster
after atoms and molecules of gases and liquids are heated, they sink?
All gasses that are not noble gases (well xenon and heaviei forms some interesting "patterns", if not truly molecules), or plasmas, are molecular gases.
Gases are substances with very weak bonds between molecules.
The molecules in a solid have less energy than those in gases and liquids. They vibrate about fixed positions. Their inter molecular forces are very strong compared to liquids and gases.
The observation about gases that proved molecules can move is their compressibility. This is further corroborated by the Brownian Motion theory.
It is assumed that Ideal Gases have negligible intermolecular forces and that the molecules' actualphysical volume is negligible. Real Gases have the molecules closer together so that intermolecular forces and molecules' physical volumes are no longer negligible. High pressures and low temperatures tend to produce deviation from Ideal Gas Law and Ideal Gas behavior.
the reason there are no gases in mercury the molecules moves fast at high temperature
All gases have same kinetic energy of molecules at same conditions.
Yes, gases can both expand and contract. When heated, gases expand as the molecules move more rapidly, increasing the pressure and volume. Conversely, when cooled, gases contract as the molecules slow down, decreasing the pressure and volume.
The CFC molecules are man made chemicals for refrigeration. The molecules on reaction release 2 gases. These gases are Chlorine and Fluorine.