Chem

Chapter 11: Inter molecular Forces To this point: weve focused on the genius of the forces within molecules E.g. H2O: we can describe the bonding, geometry, and sign victimisation VB and VSEPR ideas Intramolecular forces forces within molecules, e.g., covalent/ionic bonds, etcetera influence molecular shape, bond energies, polarity, etc. Now: how do molecules interact with each some other? intermolecular forces forces amid molecules nature of intermolecular forces determines physical properties of liquids & solids, e.g., boiling & melting points What differentiates the vapourised state from the liquid & solid states? How to good example the tierce states of matter?

We use the energising molecular theory Kinetic-molecular description of fellatees, liquids & solids Kinetic-molecular model of a gas: Collection of widely separated, noninteracting particles Constant, haphazard motion Average kinetic energy of particles >> attractive forces amidst particles drop of voiceless attractive forces between particles allows a gas to overgorge its container Kinetic-molecular model of liquids Intermolecular attractive forces strong plentiful to persuade particles close together Liquids are more sluggish and less compressible than gases little empty space between particles than in a gas Clusters or groups of particles can soothe move comparative to unmatc hed another Average kinetic energy of par! ticles [pic]intermolecular attractive forces Kinetic-molecular model of solids Intermolecular attractive forces strong enough to lock particles in place Less compressible than liquids less empty space between particles a undischarged deal have highly ordered structures (crystalline solids) Particles are not redundant to move - they can only vibrate relative to integrity another Average kinetic energy of particlesIf you motive to get a full essay, order it on our website: OrderCustomPaper.com

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