Bonus
Martin Feinberg studied how the dynamics of these processes can be deduced from the deficiency and other graph theoretic quantities of their namesake networks. For 10 points each:
[10h] Name these processes. The Oregonator model describes the time evolution of one of these processes with three coupled differential equations.
ANSWER: chemical reactions [accept chemical reaction network theory or reaction graphs; accept Belousov–Zhabotinsky reaction or clock reactions or oscillating chemical reactions]
[10e] Each term in the Oregonator model’s differential equations represents this quantity for an elementary reaction. This quantity equals concentration times a related constant for first-order reactions.
ANSWER: reaction rate [accept rate law or rate equation; reject “rate constant”]
[10m] The temperature-jump technique measures the time a reaction takes to undergo this process to determine the reaction’s kinetics. A perturbed system returns to equilibrium in this process, whose time is measured in NMR.
ANSWER: relaxation [accept relaxation time]
<Chemistry>
Answerlines and category may not exactly match the version played at all sites
Conversion
| Team | Opponent | Part 1 | Part 2 | Part 3 | Total | Parts |
|---|---|---|---|---|---|---|
| Arizona State | LSE | 0 | 10 | 10 | 20 | EM |
| Chicago A | Waterloo A | 10 | 10 | 10 | 30 | HEM |
| Columbia A | Rutgers | 10 | 10 | 10 | 30 | HEM |
| Columbia B | UCF | 0 | 10 | 10 | 20 | EM |
| Cornell B | RIT | 0 | 10 | 0 | 10 | E |
| Georgia State | Waterloo B | 0 | 10 | 10 | 20 | EM |
| Harvard | Georgia Tech | 0 | 10 | 10 | 20 | EM |
| Illinois B | Ohio State | 0 | 10 | 10 | 20 | EM |
| Indiana | Stanford | 10 | 10 | 10 | 30 | HEM |
| Iowa State | Toronto C | 0 | 10 | 0 | 10 | E |
| Johns Hopkins | MIT | 0 | 10 | 10 | 20 | EM |
| Maryland | Michigan | 0 | 10 | 10 | 20 | EM |
| Minnesota | Cornell A | 0 | 10 | 0 | 10 | E |
| NYU | Yale | 0 | 10 | 10 | 20 | EM |
| North Carolina A | Toronto A | 0 | 0 | 10 | 10 | M |
| Northwestern | UC Berkeley A | 0 | 10 | 10 | 20 | EM |
| Ottawa | WUSTL B | 10 | 10 | 10 | 30 | HEM |
| Penn State | British Columbia | 0 | 10 | 10 | 20 | EM |
| Toronto B | Chicago B | 0 | 10 | 10 | 20 | EM |
| UC Berkeley B | Florida | 0 | 10 | 10 | 20 | EM |
| Vanderbilt | North Carolina B | 0 | 10 | 0 | 10 | E |
| Virginia Tech | Texas | 0 | 10 | 0 | 10 | E |
| WUSTL A | Illinois A | 0 | 10 | 10 | 20 | EM |
| Winona State | Virginia | 0 | 0 | 10 | 10 | M |
Summary
| Tournament | Exact Match? | Heard | PPB | Easy % | Medium % | Hard % |
|---|---|---|---|---|---|---|
| 2025 ACF Nationals | Yes | 24 | 18.75 | 92% | 79% | 17% |