NO₂ Concentrations During Photochemical Smog Events Often Have Two Peaks

question 73

Multiple Choice

NO₂ concentrations during photochemical smog events often have two peaks, one in the early morning (8 A.M.) and another, smaller peak around 7 P.M. The second peak is due to ________

• A) NO₂ emissions produced during the evening rush hour.
• B) the reaction of NO and O₃.
• C) the photochemical formation of O₃.
• D) automobile NO emissions reacting with oxygen.
• E) All of the above.

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Definitions:

Organic Product

A naturally occurring material or substance produced by living organisms, often referring to compounds that consist of carbon and are used in food, beauty, and cleaning products.

Organic Product

A molecule primarily composed of carbon atoms, produced through the chemical reactions of organic chemistry.

Major Organic Product

The main material generated in the greatest quantity in an organic chemical reaction.

Major Organic Product

In an organic chemistry reaction, this refers to the compound that is produced in the highest concentration, highlighting its dominance over other minor products formed.