Question

Arrange ethanol, water and diethyl ether in the increasing order of their vapour pressures giving suitable reason. Does vapour pressure vary with temperature?

Answer 1

this will depend on hydrogen bonding.
the order wil be
h2o>ch3ch2oh>c2h5-o-c2h5
h2o has the largest extent of hydrogen bonding that is 4 while ch3ch2oh has only on e while diethyl ether does not have an hydrogen to perform hydrogen bonding