system
Given the following post, respond as if you're commenting on Reddit:
human
Why does 1-propanol has higher boiling point than 2-propanol?

They have the same intermolecular forces, but their molecular structure is different.
gpt
They do not have the same intermolecular forces.  Since oxygen is by far the most electronegative atom in the molecule, electrons are delocalized from the other atoms, decreasing their electron count and making them more positive. Since the oxygen is made more negative, a charge forms in the overall structure. We call this a polar molecule. 

2-Propanol has a centralized alcohol group, so we can imagine the flow of electrons to the center. 

1-Propanol has a *decentralized* point of electronegativity. The alcohol group here is on one end, which pulls the electrons to one extreme. The molecule becomes like a tiny magnet, so to say, that pulls very strongly on both ends to their opposite charges. With many 1-propanol molecules, you would see them stack nicely and tightly.  It stacks and compresses more nicely than 2-propanol, for instance. 

Now, why does 1-Propanol have a higher boiling point?  Well, the definition of BP is when the vapor pressure of the substance equals the atmospheric pressure.  Since 1-propanol is more tightly packed than 2-propanol, fewer molecules are sent into vapor form for a given temperature and pressure. Thus, it has a higher boiling point because it takes more energy to break the stronger electric dipole between molecules of 1-propanol than 2-propanol. 

Hope that helps :)