List the following in order of increasing boiling point temp

List the following in order of increasing boiling point temperature.

N₂, CH₃CH₂OH ,CH₃OCH₃

How do you know when there is hydrogen bonding?

Also please explain how you found the answer. Thanks in advance!

Solution

CH3CH2OH > CH3OCH3 > N2

stronger the intermolecular forces higher the boiling points.

alcohol has strong hydrogen bonding so highest boiling point.

ether has dipole-dipole interaction which is weaker compared to hydrogen bonding so second highest boiling point.

N2 have only london-dispersion forces which are weakest so lowest boiling point.