Difference between revisions of "Chem321:Problem Set 5"

From WikiChem
Jump to: navigation, search
(Post questions for 2012)
(Update for 2013)
Line 1: Line 1:
Please type up your answers in Microsoft Word, Word Perfect, OpenOffice Writer or RTF file format, and email to me before midnight on Friday, August 3rd. Do not post your answers on the wiki.  
+
{{Chem321 navigation}}
 +
Please type up your answers in Microsoft Word, Word Perfect, OpenOffice Writer or RTF file format, and email to me before midnight on Friday, July 31st, 2013. Do not post your answers on the wiki.  
  
# Explain briefly the meaning of the following terms: Understorey reinitiation, the Green Revolution, Waste Reduction At Source (WRAS), the Biomass Pyramid, Green Chemistry
+
Questions TBA.
# (~200 words) Biotechnology allows genetic modification of crops so that they become naturally pest-resistant. Discuss the pros and cons of GM crops, and explain why they were largely banned in Europe.
 
# (100-150 words) What is meant by Zero Waste to Landfill, and how did Haworth Furniture achieve this in practice at their factories.
 
# (~200 words) In the video assigned for Unit 11, Paul Anastas talks about "doing the right things wrong".  Explain exactly what he means by this, and how green chemistry overcomes this.
 
# (200 words) Explain the process of wood liquefaction.  What are the benefits, and what is hindering the wider use of this technology?
 
# (150-200 words) At the '''[http://acswebcontent.acs.org/gcande/ Green Chemistry Conference I attended last year]''', I heard two different speakers (including one from a pharmaceutical company) state categorically that '''every green chemistry process I have ever seen introduced onto the plant has always been cheaper to run than the "dirty" process it replaced'''.  How is this possible, given the common viewpoint that cleaning up a process must always cost money?*
 
 
 
<nowiki>*</nowiki> ''One speaker at the conference beautifully explained this common myth, by pointing out that green products at the supermarket invariably cost more to buy - so they must cost more to make, right?!''
 
  
 
[[Category:Chemistry 321]]
 
[[Category:Chemistry 321]]

Revision as of 19:38, 14 July 2013

THE SUSTAINABLE
WORLD
(Chemistry 321)
Earth from space
MAIN PAGE
SyllabusSchedule
Welcome page
Contact Dr. Walker
This week
Today's tasks(tomorrow)
Course units
1 - 2 - 3 - 4 - 5 - 6 - 7
8 - 9 - 10 - 11 - 12 - 13 - 14
Moodle site

Course content
Assignments

Paper - Acme - 1 - 2 - 3 - 4 - 5
Final exam - Practice final

Practice problems
Discussions

General wiki help
Basic editing
Create an account
Protocols
Tutorial
Demo, for practice

Please type up your answers in Microsoft Word, Word Perfect, OpenOffice Writer or RTF file format, and email to me before midnight on Friday, July 31st, 2013. Do not post your answers on the wiki.

Questions TBA.