Question
Studies of combustion can achieve this condition with jets in a design of Jack Longwell’s. For 10 points each:
[10m] Name this condition that holds when residence time is relatively large and allows a constant concentration to be assumed. In a plug flow reactor, this condition only holds in the radial direction.
ANSWER: perfectly mixed [accept well-mixed; prompt on continuously stirred]
[10e] The cross-sectional velocity profile of a laminar flow reactor has this shape because the velocity is a quadratic function of distance from the wall.
ANSWER: parabola [or parabolic]
[10h] This technique takes advantage of the flat profile of electro-osmotic flow to preconcentrate samples before capillary electrophoresis. This technique focuses analytes into discrete peaks by sandwiching them between buffers with different mobilities.
ANSWER: sample stacking [or word forms of stacked; accept isotachophoresis or ITP]
<Chemistry>
Summary
| 2024 ACF Nationals | 2024-04-21 | Y | 13 | 9.23 | 92% | 0% | 0% |
Data
| Waterloo | Chicago D | 0 | 10 | 0 | 10 |
| Columbia A | McGill | 0 | 10 | 0 | 10 |
| Columbia B | North Carolina B | 0 | 10 | 0 | 10 |
| Cornell A | Michigan | 0 | 10 | 0 | 10 |
| Indiana | Toronto A | 0 | 10 | 0 | 10 |
| Brown | Minnesota A | 0 | 10 | 0 | 10 |
| Berkeley B | North Carolina A | 0 | 10 | 0 | 10 |
| Berkeley A | Toronto B | 0 | 10 | 0 | 10 |
| Kentucky | Virginia | 0 | 0 | 0 | 0 |
| Johns Hopkins | WUSTL A | 0 | 10 | 0 | 10 |
| Chicago A | WUSTL B | 0 | 10 | 0 | 10 |
| Cornell B | Yale A | 0 | 10 | 0 | 10 |
| Stanford | Yale B | 0 | 10 | 0 | 10 |