APFIVE Photochemical Smog NO₂ Data Analysis
During the formation of photochemical smog, the rate of nitrogen dioxide (NO2) formation is observed to be approximately 7 ppm per hour between 11 A.M. and 4 P.M. All of the following statements are true except:
| Time (hr) | NO2 Level (ppm) |
|---|---|
| 11 | 15 |
| 16 | 50 |
A
A constant rate of 7 ppm/hr indicates a linear accumulation of NO2 over time.
B
The rate of increase is 7 ppm per hour.
C
Multiplying the rate (7 ppm/hr) by 5 hours gives a total increase of 35 ppm.
D
The total increase in NO2 over this 5-hour period is 42 ppm.
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