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In the lower troposphere, ozone is one of the components
Chapter 16, Problem 84P(choose chapter or problem)
In the lower atmosphere, ozone is one of the components of photochemical smog. It is generated in air when nitrogen dioxide, formed by the oxidation of nitrogen monoxide from car exhaust, reacts by the following mechanism:
Assuming the rate of formation of atomic oxygen in \(step 1\) equals the rate of its consumption in \(step 2\), use the data below to calculate (a) the concentration of atomic oxygen [O]; (b) the rate of ozone formation.
Equation Transcription:
Text Transcription:
step 1
step 2
Questions & Answers
QUESTION:
In the lower atmosphere, ozone is one of the components of photochemical smog. It is generated in air when nitrogen dioxide, formed by the oxidation of nitrogen monoxide from car exhaust, reacts by the following mechanism:
Assuming the rate of formation of atomic oxygen in \(step 1\) equals the rate of its consumption in \(step 2\), use the data below to calculate (a) the concentration of atomic oxygen [O]; (b) the rate of ozone formation.
Equation Transcription:
Text Transcription:
step 1
step 2
ANSWER:
Solution 84P
Step 1
(a) Here we have to calculate the concentration of the atomic oxygen [O].
Given
k1= 6.0 × 10-3 s-1 [NO2] = 4.0 × 10-9 M
k2 = 1.0 × 106 L/mol·s [O2] = 1.0 × 10-2 M
and
In order to calculate the [O], we have to combine rate1 = rate2
i.e = k1[NO2] = k2 [O][O2]
[O] =
= = 2.4
10-15M
Thus the concentration of atomic oxygen is found to be 2.4 10-15M.