Question
The anharmonic Morse potential that models this process is an improvement over the quantum harmonic oscillator. For 10 points each:
[10m] Name this process, which can occur in bending, wagging, and stretching modes. IR spectroscopy works by measuring the change in dipole moment caused by this process.
ANSWER: molecular vibration
[10e] Molecules with this property have 3N minus 5 vibrational degrees of freedom, while molecules without this geometry have 3N minus 6. Molecules with this geometry, such as carbon dioxide, have a bond angle of 180 degrees.
ANSWER: linear
[10h] When applied to spectroscopy, this statement states that total energy is equal to the sum of electronic, vibrational, and rotational energies. This statement separates the wavefunctions of nuclei and electrons.
ANSWER: Born–Oppenheimer approximation [or BO approximation]
<Science - Chemistry>
Summary
| 2023 ACF Fall (Rutgers) | 10/14/2023 | Y | 7 | 10.00 | 71% | 29% | 0% |
Data
| NYU A | Columbia B | 10 | 10 | 0 | 20 |
| NYU B | Lehigh | 0 | 10 | 0 | 10 |
| Maryland | Rutgers | 0 | 0 | 0 | 0 |
| Swarthmore A | NYU C | 10 | 10 | 0 | 20 |
| Princeton | University of Delaware B | 0 | 10 | 0 | 10 |
| Fordham | Rowan | 0 | 10 | 0 | 10 |
| University of Delaware A | Swarthmore B | 0 | 0 | 0 | 0 |