The correct order of boiling points of the compounds NH3,HF,SiH4, and CH4 is HF,NH3,SiH4,CH4.The correct order of boiling points of the compounds NH3,HF,SiH4, and CH4 is HF,NH3,SiH4,CH4.The boiling point of a compound is the temperature at which the vapor pressure of the liquid is equal to the atmospheric pressure. The stronger the intermolecular forces, the higher the boiling point.