化學問題, 多多指教

NaF has a higher b.p.

NaF is an ionic compound. the interaction is strong electrostatic force

HF is held intermolecular hydrogen bond.

the strength of hydrogen bond is only 1/100 of ionic bond.

thus, more energy is required to vapourize ionic compound

boiling means a substance changes state from liquid to gas.

in sodium flouride, there are strong ionic bond present

in hydrogen flouride, there are only weak intermolecular force present.

therefore, the boiling point of sodium flouride is higher.