hp-chap9 - Chapter 9 Liquids and Solids 9.1 Intermolecular...

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Chapter 9 Liquids and Solids 9.1 Intermolecular Forces 9.2 The Liquid State 9.3 An Introduction to Structures and Types of Solids 9.4 Structure and Bonding in Metals 9.5 Carbon and Silicon: Network Atomic Solids 9.6 Molecular Solids 9.7 Ionic Solids 9.8 Structures of Actual Ionic Solids 9.9 Lattice Defects 9.10 Vapor Pressure and Changes of State 9.11 Phase Diagrams 9/28/2009 GT 6e Zumdahl Chapter 9.1-9.3 1
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Chapter 9 Objectives 9.1: Describe the differences between intermolecular and intramolecular forces with an emphasis on the relative energies of each type of attraction. 9.2: Discuss the influence of these forces on physical properties such as freezing point and boiling point. 9.3: Provide real-life applications with biological systems such as DNA or proteins, and other systems as appropriate. 9.10/11: Define terms associated with phase transitions; define phase diagram 9/28/2009 GT 6e Zumdahl Chapter 9.1-9.3 2
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Intermolecular Forces: Why Condensed Phases Exist 9/28/2009 GT 6e Zumdahl Chapter 9.1-9.3 3 •I n t r a molecular Forces – Chemical bonds • Strong • Directional • Short Range (relative) Inter molecular Forces • Weaker than chemical bonds, usually much weaker • Less directional than covalent bonds, more directional than ionic bonds • Longer range than covalent bonds but at shorter range than ionic bonds Condensed Phases – Solids and Liquids Intermolecular forces : mutual attractions hold the molecules closer together than gases Note: Distinction between
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Types of Non-Bonded (Intermolecular) Attractions 1. Dipole-Dipole Interactions 2. Ion-Dipole Interactions 3. Induced Dipole Attractions 4. London Dispersive Forces 9/28/2009 GT 6e Zumdahl Chapter 9.1-9.3 4
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Types of Non-Bonded (Intermolecular) Attractions 1. Dipole-Dipole Interactions e.g., Hydrogen Bonding 9/28/2009 GT 6e Zumdahl Chapter 9.1-9.3 5
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Groups 4A, 5A, 6A, and 7A. 9/28/2009
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hp-chap9 - Chapter 9 Liquids and Solids 9.1 Intermolecular...

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