chem 112 week 5 notes
chem 112 week 5 notes CHEM 112000
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This 2 page Class Notes was uploaded by Olivia Lee on Friday February 12, 2016. The Class Notes belongs to CHEM 112000 at Purdue University taught by Abu-Omar in Winter 2016. Since its upload, it has received 9 views. For similar materials see Chemistry in Chemistry at Purdue University.
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Date Created: 02/12/16
CHEM 112 1 nd Edition Lecture 5 Outline of Last Lecture I. Liquid-Gas Phase Changes II. Boiling Point III. Liquid-Solid Phase Changes IV. Solid-Gas Phase Changes V. Heating & Cooling Curves Outline of Current Lecture I. Intermolecular forces II. Properties of Liquids III. Properties of Solids Current Lecture Intermolecular forces: The attractive forces between molecules o London Dispersion Forces Relative boiling points tell us about intermolecular force strength The stronger the forces, the higher the temperature needed to overcome them o Dipole Dipole forces One of the elements polarizes the other attractive forces between the positive end of one polar molecule and the negative end of another polar molecule These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute. o Hydrogen Bonding Occurs with Nitrogen, Oxygen, and Fluoride. Hydrogen bonding is the strongest thing that holds DNA helixes together Hydrogen bonding in H20 causes ice to be less dense than the liquid state Properties of Liquids Vapor pressure Density Viscosity Surface tension Capillary action Properties of Solids The particles in the solid state are held together in specific positions—there is no translational motion Superconductors: Unique in that they offer no resistance to the conduction of electrical current Repel magnetic fields Low temperatures are requires
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