So... I've gone back through my back-of-the envelope equations, and yes, using the reduced mass of carbon and oxygen (just for fun, 1E-26 kg) and the energy of the molecular vibration (5E-20 J), I can get a "momentum" of 3E-23 kg*m/s, leading to a de Broglie wavelength of about 20 pm. The bond...
Ha. Um... yes (and thanks), presbyope, you're quite correct about my dyslexia. I guess then that my non-method would suggest that the CO stretch would be best modeled using quantum mech.
I'm less concerned, however, with classification as with trying to figure out if there is any real way...
Homework Statement
In his presentation of the de Broglie wavelength and the wave/particle duality, my quantum prof. has an exercise: "Find the de Broglie wavelength of a molecular vibration. Do quantum or classical laws apply?"
Homework Equations
wavelength = h/(momentum)
...