00:01
The molecular forces hold molecules or atoms together in liquids and solids, and so the strength of the intermolecular forces in a substance does determine its state.
00:08
So, for example, if we have dispersion forces, dipole -dipole forces or hydrogen bonding, and even iron -dipole forces.
00:15
So firstly, what we have is ph3, analogous to ammonia.
00:21
And so this is a polar molecule, so what we have is dispersion forces, and we also have dipole -dipole forces.
00:37
Secondly, we have hbr.
00:41
And so what we have is, again, another polar molecule.
00:44
So we do have dispersion forces and dipole -dipole forces...