Question
This equation depends on a “charge transfer coefficient” that quantifies the asymmetry of the potential barrier. For 10 points each:
[10h] Name this doubly eponymous equation in electrochemical kinetics. This equation states that the current at an electrode is the sum of two contributions, one exponentially increasing in the voltage and one decaying.
ANSWER: Butler–Volmer equation
[10e] The electrode current cannot grow indefinitely with increasing voltage; it is eventually limited by the rate at which this process brings fresh reactants to the surface. This process transports species from high to low concentration.
ANSWER: diffusion
[10m] The rates are exponential in this quantity, symbolized eta. This quantity measures the difference between a reaction’s equilibrium potential and the potential of the electrode where it is occurring.
ANSWER: overpotential
<RA, Chemistry>
Summary
| 2023 ARCADIA at UC Berkeley | Premiere | Y | 2 | 10.00 | 100% | 0% | 0% |
| 2023 ARCADIA at Carleton University | Premiere | Y | 3 | 6.67 | 67% | 0% | 0% |
| 2023 ARCADIA at Claremont Colleges | Premiere | Y | 1 | 20.00 | 100% | 100% | 0% |
| 2023 ARCADIA at Duke | Emory, Duke, Yale | Y | 4 | 10.00 | 100% | 0% | 0% |
| 2023 ARCADIA at Emory | Emory, Duke, Yale | Y | 4 | 10.00 | 100% | 0% | 0% |
| 2023 ARCADIA at Imperial | Imperial | Y | 5 | 10.00 | 100% | 0% | 0% |
| 2023 ARCADIA at Indiana | Premiere | Y | 5 | 20.00 | 100% | 60% | 40% |
| 2023 ARCADIA at Maryland | Maryland, Online | Y | 3 | 10.00 | 100% | 0% | 0% |
| 2023 ARCADIA at Ohio State | Ohio State, Texas | Y | 3 | 10.00 | 100% | 0% | 0% |
| 2023 ARCADIA Online | Maryland, Online | Y | 3 | 26.67 | 100% | 100% | 67% |
| 2023 ARCADIA at RIT | Premiere | Y | 2 | 20.00 | 100% | 50% | 50% |
| 2023 ARCADIA at Texas | Ohio State, Texas | Y | 3 | 23.33 | 100% | 67% | 67% |
| 2023 ARCADIA at WUSTL | Premiere | Y | 3 | 16.67 | 100% | 33% | 33% |
Data
| Birmingham | Warwick | 0 | 10 | 0 | 10 |
| Oxford | Cambridge B | 0 | 10 | 0 | 10 |
| Durham | Bristol | 0 | 10 | 0 | 10 |
| Imperial A | Edinburgh | 0 | 10 | 0 | 10 |
| Cambridge A | Imperial B | 0 | 10 | 0 | 10 |