02/25/2013 Lecture 20
NOTE: Personal summary sheets made by Martin M. for CHEM 204: Winter, Prof. Barrett
Global Energy Consumption
If you look at an energy map, 60% of energy is lost as heat in the USA. Canada is only 25%
fossil fuel and 60% hydroelectric.
Quebec is 97% hydroelectric, but McGill is only <50% electric because we are set up for
natural gas. Our energy usage is based on what was cheap in the 60s. Cheaper to stick
with natural gas and change everything
1. Oil: All oil is essentially from sunlight and dead dinosaurs/decaying plants.
Pros: easy to acquire (hole in ground), easy to transport (pipes), good fuel
Cons: combustion, limitted supply, unevenly distributed
World crude oil reserves&production numbers are untrustworthy because every country
overestimates theirs to seem richer. Canada has tons of oil, but it's expensive to raise a barrel in
Pros: lots of it (>90% of our fossil fuel reserves), evenly distributed!
Cons: It's a rock= hard to transport, process, dangerous to mine, dirty (can't be purified of
sulfur, nitrogen, phosphorus and has more Carbons/hydrogen, plus), more expensive
3. Natural Gas:
Pros: cleaner burning, easy shipping, cheap,
Cons: Combustion, hard to store (gas)
Note: Acid rain is slowl