•li,-Intermolecular Forces and Liauids and SolidsCHM12A PHASE isa homogenous part ofthe system in contact with other parts of thesystem but separated from them by awell defined boundary.CharacteristicProperties of Gases, Liquids and SolidsStateVolume/ShapeDensityCornpressi bilityMotion ofMoleculesGasAssumes theLowVeryVery freevolume andcompressiblemotion,shape of itscontainerLiquidHas adefiniteHighOnly SlightlySlide past onevolume butcompressibleanother freelyassumed theshape of thecontainerSolidHas adefiniteHighVirtuallyVibrate aboutvolume andincompressiblefixed positionsshapeINTERMOLECULAR FORCESIntermolecular forces: are attractive forces between molecules. Generally thesetypes of forces are weaker than intramolecular forces.Intramolecular forces: hold atoms together in a molecule.TYPES OF INTERMOLECULAR FORCES1. Ion - Dipole Forces: attractive force between an ion and a polar molecule.
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