Photoionization Processes (E

question 6

Multiple Choice

Photoionization processes (e.g., N₂ +hν → N₂⁺ + e^-) remove UV of <150 nm. Which photoreaction is the principal absorber of UV in the 150-200 nm range in the upper atmosphere?

• A)N₂ + hν → 2N
• B)O₂ + hν → 2O
• C)O₃ + hν → O₂ + O
• D)N₂ + O₂ + hν → 2NO
• E)NO + O₂ + hν → NO₃

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