00:01
So first we need to understand isotopic substitution.
00:14
This involves replacing one isotope in a molecule with another isotope of the same element.
00:20
And this can affect the molecule's properties, like its vibrational and rotational spectra, which is useful in scientific studies.
00:41
Then we need to talk about the rotational energy levels, where energy equals bj times j plus 1, where b is the rotational constant, j is the rotational quantum number.
01:00
So calculating the energy levels, given b equals 5 centimeters to the negative 1, we calculate it for different levels of j.
01:13
So your j is going to be 0, 1, 2, 3, 4, and 5.
01:21
And then you would have e0, e1, e2, e3, e4, and e5.
01:38
So this would be 5 times 0 times 0 plus 1, which is 0.
01:54
Actually, we can do it this way.
01:59
This is your e column...