Packet 1: Bonus 18
Answer the following about using metal-organic frameworks as carbon capture agents, for 10 points each.
[10m] The small pore sizes and low heat capacities of MOFs allow them to capture carbon via this process. Saturated MOFs can be regenerated with either the “temperature-swing” or “pressure-swing” forms of this process.
ANSWER: adsorption [accept temperature-swing adsorption or pressure-swing adsorption; reject “absorption”]
[10h] Due to their hydrophobic nature, this class of “glassy” MOFs are useful for carbon capture. Chemical “caryatids” improve the stability of these MOFs, which are topologically isomorphic to zeolites.
ANSWER: zeolitic imidazolate frameworks [or ZIFs]
[10e] MOFs can catalyze the conversion of CO2 to biogas when coordinated with elements from this series, which are above actinides on the periodic table.
ANSWER: lanthanides [prompt on rare-earth elements]
<MS, Chemistry> | NAFTA-Packet-1
| Heard | PPB | E % | M % | H % |
|---|---|---|---|---|
| 12 | 15.83 | 100% | 58% | 0% |
Conversion
| Team | Opponent | Part 1 | Part 2 | Part 3 | Total | Parts |
|---|
Summary
| Tournament | Edition | Match | Heard | PPB | E % | M % | H % |
|---|---|---|---|---|---|---|---|
| 2026 NAFTA at Stanford | 01/17/2026 | ✓ | 3 | 20.00 | 100% | 100% | 0% |
| 2025 NAFTA Online | 02/14/2026 | ✓ | 4 | 12.50 | 100% | 25% | 0% |
| 2026 NAFTA at Vanderbilt | 02/14/2026 | ✓ | 3 | 20.00 | 100% | 100% | 0% |
| 2025 NAFTA at Toronto | 09/13/2025 | ✕ | 3 | 16.67 | 100% | 67% | 0% |
| 2025 NAFTA at Maryland | 09/27/2025 | ✕ | 4 | 15.00 | 100% | 25% | 25% |
| 2025 NAFTA at Harvard | 10/04/2025 | ✕ | 3 | 26.67 | 100% | 100% | 67% |
| 2025 NAFTA at Oxford | 10/11/2025 | ✕ | 3 | 13.33 | 100% | 33% | 0% |
| 2025 NAFTA at Chicago | 11/08/2025 | ✕ | 5 | 18.00 | 100% | 80% | 0% |
| 2025 NAFTA at Columbia | 11/08/2025 | ✕ | 5 | 14.00 | 100% | 40% | 0% |
| 2025 NAFTA at Richmond | 12/20/2025 | ✓ | 2 | 10.00 | 100% | 0% | 0% |