# At standard pressure, a certain compound has a low boiling point and is insoluble in water. At STP, this compound most likely exists in what phase?

The boiling point was specified to be LOW....and this suggests a non-condensed phase, i.e. a gas. While there are gases that have considerable water solubility, i.e. $H C l$, $H C \equiv N$ etc., there are several gases that have POOR solubility in water, for instance, $C {H}_{4}$, $P {H}_{3}$, $S i {H}_{4}$...but not $N {H}_{3}$...why not?