How many grams of glucose (MM = 180.2 g/mol) would need to be
dissolved in 100.0 g of water to decrease the vapor pressure of the
solution to 22.0 torr? (Pº of water is 23.5 torr)

Ch4 and ph3 are both covalent since they are composed both of non-metals.    ch4 is non- polar because of  london forces and has a geometry of tetrahedral  ph3 , on the other hand, is umbrella shaped polar and has dipole-dipole intermolecular force (imf) . since ph3 is polar, it has a stronger imf   

Is there a picture or answer choices?

The bergeron process.