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Published byRosamond Walker Modified over 9 years ago
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Chapter 12 & 13
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Chemical properties arise from intramolecular forces- bonding within the molecule Physical properties arise from intermolecular forces- (non-bonding)forces between molecules http://www.mikeblaber.org/oldwine/chm1046/notes/Forces/Intermol/Forces02.htm
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Potential energy-electrostatic attractions/bonds within molecules draw molecules together Kinetic energy-random collisions push molecules apart Observe a diatomic molecule http://chemed.chem.wisc.edu/chempaths/GenChem-Textbook/Kinetic-Theory-of-Gases-The-Total-Molecular-Kinetic- Energy/chemprime/CoreChem3AThe_Atomic_Theory-939.html http://chemed.chem.wisc.edu/chempaths/GenChem-Textbook/Kinetic-Theory-of-Gases-The-Total-Molecular-Kinetic- Energy/chemprime/CoreChem3AThe_Atomic_Theory-939.html
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IMF oppose the randomizing forces of kinetic energy Ion-Dipole Dipole-Dipole Hydrogen Bonding Ion-induced Dipole and Dipole induced Dipole London (Dispersion) Create a Graphic Organizer with the above terms; distinguish each, give examples and describe its impact on melting/boiling pt/etc
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http://www.mikeblaber.org/oldwine/chm1045/notes/Forces/State/Forces04.htm
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IMFs Surface Tension- Viscosity- Capillary action- Amount of force required to break through the surface molecular layer. The resistance of liquids to flow dependent on IMF-strong->high; polar->high, temperature-> low when cold & low KE, molecular shape-more complex->high spontaneous rising of a liquid through a narrow tube against gravity due to attractive forces between the liquid and tube wall.
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