Question
In the final step of the Chapman mechanism, one of these molecules reacts with monatomic oxygen and diatomic oxygen to form ozone. For 10 points each:
[10h] Name this class of inert molecules that carry energy away from an exothermic reaction. In atmospheric chemistry, these molecules are represented by a capital M in reactions.
ANSWER: third bodies [or third body]
[10e] One ozone sink not accounted for by the Chapman mechanism is driven by the oxidation of this molecule by monatomic oxygen in its first excited state. This molecule enters the atmosphere via evapotranspiration.
ANSWER: water [or H2O; accept water vapor]
[10m] Ozone loss unaccounted for by the Chapman mechanism occurs due to a reaction between ozone and one of these compounds. This family of molecules may be produced by lightning or by combustion of fuels in car engines.
ANSWER: NOx (“nocks”) [or NO and NO2; prompt on individual answers of NO or NO2 by asking “what family of molecules are they part of?”; prompt on nitrogen oxides by asking “which nitrogen oxides?”]
<Omer, Chemistry>
Summary
| 2024 ESPN @ Brown | 04/06/2024 | Y | 2 | 15.00 | 100% | 50% | 0% |
| 2024 ESPN @ Cambridge | 04/06/2024 | Y | 2 | 10.00 | 100% | 0% | 0% |
| 2024 ESPN @ Chicago | 03/23/2024 | Y | 6 | 13.33 | 100% | 33% | 0% |
| 2024 ESPN @ Columbia | 03/23/2024 | Y | 7 | 17.14 | 100% | 71% | 0% |
| 2024 ESPN @ Duke | 03/23/2024 | Y | 2 | 15.00 | 100% | 50% | 0% |
| 2024 ESPN @ Online | 06/01/2024 | Y | 3 | 13.33 | 100% | 33% | 0% |
Data
| A VK a Day Keeps the Doctor Away | Heat-Oppressed Brains | 0 | 10 | 0 | 10 |
| You, Me and the Big G | Eugene o'Negging | 0 | 10 | 0 | 10 |