Packet 5: Bonus 8
Changes in one quantity during this process are calculated as the sum of electrostatic interactions, dispersion-repulsion, and cavitation in polarizable continuum models. For 10 points each:
[10m] Name this process described by “implicit” models like COSMO and the generalized Born model.
ANSWER: solvation [or dissolving or dissolution or forming a solution]
[10e] Implicit models calculate changes in this quantity during solvation, which is thermodynamically favored when it lowers this quantity. This quantity equals enthalpy minus the product of temperature and entropy.
ANSWER: Gibbs free energy [accept Gibbs energy; prompt on free energy or G]
[10h] Implicit solvation models based on a dielectric “continuum” are faster to compute than models based on this quantity. This quantity can be calculated by solving a two-body system in the LCPO method.
ANSWER: accessible surface area [or solvent-accessible surface area or ASA or SASA; accept Lee–Richards molecular surface area; prompt on surface area]
<Editors, Chemistry> | N. Playoffs 5 (Editors 5)
| Heard | PPB | E % | M % | H % |
|---|---|---|---|---|
| 24 | 13.75 | 100% | 33% | 4% |
Conversion
| Team | Opponent | Part 1 | Part 2 | Part 3 | Total | Parts |
|---|---|---|---|---|---|---|
| British Columbia | UCLA | 0 | 10 | 10 | 20 | EH |
| Bruin | Georgia Tech B | 0 | 10 | 0 | 10 | E |
| Cambridge | Illinois A | 0 | 10 | 0 | 10 | E |
| Chicago B | Maryland B | 0 | 10 | 0 | 10 | E |
| Columbia A | Virginia Tech | 10 | 10 | 0 | 20 | ME |
| Columbia B | Georgia Tech A | 0 | 10 | 0 | 10 | E |
| Cornell | Illinois B | 0 | 10 | 0 | 10 | E |
| Georgia Tech C | Pittsburgh | 10 | 10 | 0 | 20 | ME |
| Indiana | Chicago A | 0 | 10 | 0 | 10 | E |
| Johns Hopkins | Virginia | 0 | 10 | 0 | 10 | E |
| MIT | WashU | 10 | 10 | 0 | 20 | ME |
| Maryland A | Northwestern A | 0 | 10 | 0 | 10 | E |
| NYU B | Michigan | 10 | 10 | 0 | 20 | ME |
| North Carolina | Brown | 0 | 10 | 0 | 10 | E |
| Penn State | Rutgers | 0 | 10 | 0 | 10 | E |
| Purdue | UCF | 0 | 10 | 0 | 10 | E |
| Stanford A | Toronto A | 10 | 10 | 0 | 20 | ME |
| Stanford B | Ohio State | 0 | 10 | 0 | 10 | E |
| Swarthmore | Northwestern B | 0 | 10 | 0 | 10 | E |
| Texas | Vanderbilt | 10 | 10 | 0 | 20 | ME |
| Toronto B | Minnesota | 10 | 10 | 0 | 20 | ME |
| UC Berkeley A | NYU A | 0 | 10 | 0 | 10 | E |
| UC Berkeley B | Harvard | 10 | 10 | 0 | 20 | ME |
| Waterloo | Georgetown | 0 | 10 | 0 | 10 | E |
Summary
| Tournament | Edition | Match | Heard | PPB | E % | M % | H % |
|---|---|---|---|---|---|---|---|
| Main Site | 2026-04-17 | ✓ | 24 | 13.75 | 100% | 33% | 4% |