Chemistry 2210A/B Lecture Notes - Lecture 3: Partial Pressure, Urban Air, Anaerobic Digestion

• School: Western University
• Department: Chemistry
• Course: Chemistry 2210A/B
• Professor: Keith Griffiths

Document Summary

Chapter 3: ground level air pollution: there are many sources of air pollutants; industry and automobile emissions are major contributors, earth"s atmosphere is oxidizing; air is cleansed by reaction of gases with oxygen. Interconversion of gas concentrations: to convert a/b to p/q, independently convert a to p (for gas of interest) and then b to q (for air involved). Trace gases in air: many natural gas sources: fires, lightning, anaerobic decay (methane), volcanic emission (cl + Sulfur: some are reduced , produced by anaerobic decay and then emitted into the air: nh3, h2s, hcl, Ch4, and ch3x (x = cl, br, i: anaerobic decay is the decay of anything that contains proteins. Will release ammonia, complex amines, and things like that in the atmosphere: others are partially oxidized: no, co, so2, sources and sinks exist for all these gases, so they are continually destroyed. 2: all listed above (except halogens) become fully oxidized in air (eliminated) but process.