CH110 Lecture Notes - Lecture 11: Intermolecular Force, Real Gas, Gas Laws
Document Summary
Sound is a vibraion of kineic energy passed frim molecule to molecule. The closer the molecules are to each other and the ighter their bonds, the less ime it takes for them to pass the sound to each other and the faster sound can travel. A substance that is more dense per volume has more mass per volume. If a material is more dense because its molecules are larger, it will transmit sound slower. Sound waves are made up of kineic energy. It takes more energy to make large molecules vibrate than it does to make smaller molecules vibrate. Qualitaive comparison of non-ideal gasses to ideal gasses. Up to now, our gas laws have applied to ideal gasses. That is, it was assumed that individual gas molecules acted as points, and occupied zero volume, and that intermolecular forces between these points was negligible. This is not the case for real gasses.
