00:01
Now in this question, you're asked to work out basically the energy of hydrogen bond, right? and that, of course, that is also the energy you need to supply to break hydrogen bonds, right? now, you basically look at estimate the hydrogen bond at the hydrogen bond energy by basically estimating the electricity energy between the charges within the molecules, right? so you, for example, you look at this molecule, which has positive, which has positive negative charges.
00:31
And you like this molecule, it also has positive negative.
00:33
It's kind of a double, similar to a table, right? and then you look at the electrostatic interaction energy between these two pairs of charges, right? so actually there are four interactions, right? so our first term, well, the two of the energy, because the sum are world for energy.
00:51
So let me do them one by one.
00:52
First, you have q1, q3, right? that's the energy between these two, right? q1, q2, and divided by the distance between them, which is according to the question, of course, is actually put these two together.
01:05
You get 0 .3, right? nometer...