Simulation - Quiz 3
Nitrogen dioxide (NO
2
) and CFC-11 (trichlorofluoromethane, CCl
3
F) are present in the atmosphere at similar concentrations (250 to 280 parts per
trillion
by volume), but have enormously different lifetimes. Which is removed from the atmosphere at a faster rate? [NO
2
or CCl
3
F]
Nitrogen dioxide (NO
2
) and carbon monoxide (CO) have similar lifetimes but enormously different atmospheric concentrations. Which is removed from the atmosphere at a faster rate? [NO
2
or CO]
In the context of atmospheric pollutants, what is another name for lifetime? [xxxxxxxxxx xxxx]
Given that R
in
= R
out
= [X]
ss
/t for a reservoir at steady state, calculate the rate of input of CCl
3
F to the atmosphere in pptv per year to one significant figure. [x pptv per year]
In the context of atmospheric pollutants, what is another name for residence time? [xxxxxxxx]
When the concentrations of the substances in an environmental reservoir have reached constant values the system is said to be in a
. [xxxxxx xxxxx]