00:01
This question is exclusively associated with intermolecular forces and how intermolecular forces affect freezing points, boiling points, delta h is a vaporization, vapor pressures, viscosity, and so forth.
00:15
So for the first one, it wants to know which of the three has the highest boiling point.
00:20
To have the highest boiling point, it needs to have the strongest intermolecular forces.
00:25
All of these are tetrahedral, where the bond polarities cancel.
00:33
So all of them just have dispersion forces.
00:36
So the one that has the strongest dispersion forces will be the heaviest one, the greatest molar mass.
00:42
This will be cbr4.
00:45
The next one is the lowest freezing point.
00:48
The lowest freezing point will be the one with the weakest intermolecular forces because we can need to go to lower and lower temperatures in order to get those weak intermolecular forces to pull it together.
01:02
So one is the salt, f2 is non -polar, and hcl is polar.
01:08
So of the three, the weakest intermolecular forces, resulting in the lowest freezing point, will be f2.
01:15
The next one is the smallest vapor pressure.
01:19
The smallest vapor pressure occurs when we have the strongest intermolecular forces, holding the molecules tightly together so that they can't escape into the gas phase...