CHEM-UA 125 Study Guide - Final Guide: Crystal, Minimal Surface, Fluorine
9 Aug 2018
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Document Summary
Chapter 9: chemical bonding: atoms bond because it is energetically favorable, lowers potential energy between positive and negative particles, bonded system has less energy than system prior to bonding, bonding is exothermic and releases energy. Ionic compounds: rigid, brittle, conducive of current, high melting and boiling points. Ideal gas law: pv = nrt **only ideal law is given** Imf: molecules attract + slow each other so pressure decreases: finite particle size: volume lower (less space to move about in container, van-der-waals equation to account for difference between real and ideal values. Chapter 12: intermolecular forces: forces between independent particles, dependent on amount of charge, distribution of charge, and length of time charge distribution exists. Ion-dipole forces: ions attract oppositely charged regions of polar molecules: dependent on charge and size. Electronic materials: crystal defects result when crystals form rapidly must form slowly to be ideal but they can be introduced purposely to improve materials, welding and alloying.
