Lecture 1 (12.1-12.2)

Lecture 1 (12.1-12.2) - Chapters (12.1-12.2) A. Section...

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Chapters (12.1-12.2) A. Section 12.1: Overview of Physical States and Phase Changes a. Bonding Forces i. Chemical bonds and Intramolecular forces 1. Ionic bonds 2. Covalent bonds 3. Metallic bonds b. Non-bonding forces i. Physical properties and intermolecular forces 1. Ion – dipole 2. Hydrogen bonds 3. Dipole – dipole 4. Ion – induced dipole 5. Dipole – induced dipole 6. Dispersive forces c. Phase changes i. Melting or fusion ( H o fusion) 1. Heat + solid -> liquid 2. Heat is absorbed, endothermic ii. Freezing ( H o freezing = - H o fusion) 1. Liquid -> solid + heat
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Heat is given off, exothermic iii. Vaporization ( H o vap) 1. Heat + liquid -> gas 2. Endothermic iv. Condensation ( H o condensation = - H o vap) 1. Gas -> liquid + heat 2. Exothermic v. Sublimation ( H o sub) 1. Heat + solid -> gas 2. Endothermic 3. H o sub = H o fusion + H o vap vi. Deposition ( H o dep) 1. Gas -> solid + heat 2. H o = - H o sub vii.Point: H
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Lecture 1 (12.1-12.2) - Chapters (12.1-12.2) A. Section...

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