CHEM 1001 Final: Chem 1003 Final Study Guide
30 Nov 2016
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Dipole-dipole attraction weak, any attraction between + and on separate molecules. Dispersion forces weakest, every chemical is capable of dispersion, but because they are so weak, they are only important for nonpolar chemicals, which cannot perform stronger intermolecular attractions. Specific heat: tells us how much energy (heat) a substance must absorb to increase its temp by. Water: 4. 186 joule/gram, higher than other substances. Specific heat of water moderates our climate. Water stays cooler longer, water stays warmer longer. Portable water: water safe for drinking and cooking. Non-portable water: water not safe for drinking and cooking. Surface water: fresh water food in lakes, rivers, and streams. Ground water: fresh water found in underground reservoirs. Water footprint: estimates the volume of fresh water used to produce particular goods or to provide services. Disinfection methods: chlorine, ozone, uv-c, distillation, reverse osmosis. Desalination (taking salt out of water: distillation: 4121$, more effective against some microbes, reverse osmosis: 4121$, more effective against some microbes.
