CHEM 167 Lecture 5: Chapter 5 - Lecture Notes
14 Oct 2016
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Document Summary
Nonattainment area - region that exceeds primary standars. Secondary standards - intended to protect enviro and property. Allowable levels- less than one part per million. Sulfur dioxide so2 - is produced during combustion of coal containing sulfur ( a frequent occurence) Photochemical reactions- can trigger the formation of ozone, o3, another criteria pollutant, at ground level from. Volatile organic compounds (voc) - hydrocarbons that readily evaporate. Expand to fill volume of any container. Idea gas law is the quantitative relationship between pressure (p), volume (v), moles of gas present (n), and the absolute temperature (t). Atmospheric pressure is the force attributed to the weight of air molecules attracted to earth by gravity. Pressure results from molecular collisions between gas molecules and container walls. Barometer - used to measure atmospheric pressure. The height of mercury column is proportional to atmospheric pressure. 760 torr = 101, 325 pa (exact)
