CHM 132 Chapter Notes - Chapter 9, 10: Net Energy Gain, Thermodynamics, Pyrolysis

• School: University of Rochester
• Department: Chemistry
• Course: CHM 132
• Professor: Kara Bren

Document Summary

Petroleum and natural gas: petroleum a thick, dark liquid composed mostly of hydrocarbons. To be useful, the petroleum must be broken into smaller fractions. At first, kerosene was better, but then gasoline was needed for the car. Fills the air with pollutants (causes acid rain) Effects of carbon dioxide on climate: the su(cid:374) that e(cid:374)ters the earth"s at(cid:373)osphere (cid:271)ut is (cid:374)ot a(cid:271)sor(cid:271)ed (cid:271)y pla(cid:374)ts i(cid:374)(cid:272)reases the te(cid:373)perature of the earth"s surfa(cid:272)e. Infrared radiation the energy is then reflected off the surface: our atmosphere allows the visible light through, but molecules (h2o and co2) catches some of the infrared radiation. This results in the warming of our planet: water has stayed consistent because of the water cycle, but molecules made from fossil fuels have increased steadily. Coal conversion: produce a gaseous fuel through a process called coal gasification, coal gasification treating the coal with oxygen and steam at high temperatures to break many of the carbon-carbon bonds.