Environmental Chemistry MidTerm Examination February 26, 2009
DO NOT OPEN UNTIL INSTRUCTED TO BEGIN!
Answer all questions in ink; simply cross out mistakes. There should be NO talking or conversing or discussions of politics during the
Rxn 1: O2 + hn 2O
Rxn 2: O + O2 + M O3 + M
Rxn 3: O3 + hn O2 + O
Rxn 4: O + O3 2O2
This is an appropriate assumption w
Atmosphere is a Thin Blanket
99% of our atmosphere is less
than 50 km above Earths
Composition of Earths Atmosphere
Mixing ratios of gases in dry air
Carbon dioxide (CO2)
CHM210 Tutorial #2
September 25, 2015
To remind you of the examples we discussed in tutorial today, recall the simplied picture of production and
destruction of excited oxygen atoms, O , in the atmosphere:
O2 + h
CHM210 Tutorial - Friday, September 18th, 2015
September 21, 2015
In tutorial on Friday we talked about relative concentrations (mixing ratios) and absolute concentrations (number
densities). This is discussed briey in your text book on page 5 (5th editio
Chemistry of Environmental Change
Lecture: Tues/Thurs 14:00-15:00 in LM161
Tutorial: Friday 12:00-1:00, 2:00-3:00, or 3:00-4:00 in LM157
Office hours: Monday 14:00 15:00 in LM157, Thursday 15:00-16:00 after class, location TBA
CHM 310S: Environmental Chemistry
This course considers the chemistry of carbon in the environment, by studying its many chemical
forms and the environmental effects associated with those compounds. In particular, we will focus on
three of the most import
In this item I list some reading from the textbook and elsewhere that is relevant to the lecture
material. Note that I will tell you to read the attached papers and report.
Remember that you are only responsible for what we cover in class and NOT for read
1) Predict the atmospheric lifetime of CH2CL2.
Why is it greater or lesser than CH3Cl? Why? (without calculating)
Draw out the decomposition reaction of CH3Cl via reaction with the OH
2) Describe the properties of an ideal bi
Last Energy lecture
1. The articles: project a positive pragmatic view of how to move forward. Success stories
from removing chlorine from atmosphere.
2. Almost 6 years old, this field. And is very popular.
3. The heart of the article: we are i
Monday office hours: 2-3 lm 157
Thursday office hours: 3-4 chemistry library
study room (the largest one, called caffeine)
I will try to post completed lecture slides as
well as audio recordings.
First quiz on Friday (practice pro