So gas molecules have generally different properties than that of liquid molecules or solid molecules. Now, in this lecture, I'm going to give a brief introduction to the gas state. So, gas molecules travel at very, very high velocities at approximately 1000 mph or 480 meters/second. Now, that means if you allow single gas molecule to travel from New York to California without being interrupted, it would take it about 3 hours to get there versus a car that would take days and days. And so, because of this high speed, they feel very little force from other gas molecules and that means very little intermolecular bonding. Remember, the reason water is held together or any other solid is due to intermolecular bonding between the molecules.