00:01
In order from lowest vapor pressure to highest vapor pressure.
00:13
So from this question, we know that it's based on the intermolecular forces.
00:20
When you have a strong molecular force, it has a lower vapor pressure.
00:29
If you have the weakest intermolecular force, then it has the highest vapor pressure.
00:35
Vapor pressure.
00:37
So basically, if we want to know the lowest, highest vapor pressure, we're looking for the strongest intermolecular interaction to the weakest interaction.
01:07
So let's look at all the options.
01:10
So a, you have ethanol.
01:15
So the ethanol actually, c2, c, th3, ch2, oh, and it actually has hydrogen bonding, which is a very strong intermolecular force because you have the own lh.
01:31
So basically partially negative o will interact with partially positive h of the other molecule.
01:42
So then it actually formed this very strong hydrogen bomb.
01:52
This is the strongest.
01:56
To molecule interaction.
01:59
So this means that this has the lowest vapor pressure.
02:23
Now the next one is ch3o, ch3...