Why compounds of polar molecule are likely to have a higher melting point than compounds consisting of non polar molecule?

Answer 1

the more polar the molecule, the stronger the dipole-dipole force. Since this force is stronger, the atoms are held closely together, so it is harder for photons (in this case heat energy) to break up the molecule, causing boiling.

Answer 2

Every atoms exhibits Intermolecular Forces on the atoms around it. These forces pull the atoms closer together and include: hydrogen bonding, dispersion forces, dipole - dipole, and ion - dipole forces.

Atoms with polar bonds exhibit much greater Intermolecular Forces than atoms with non polar bonds. These Forces hold together the atoms so that the breaking of bonds required for boiling is much tougher.

Answer 3

polar molecules have polarity in them due to which on both ends there are +ve and -ve charges , when many molecules are there +ve end of one molecule attracts the -ve end of another molecule and this goes on for long time due to which they develop a bond type connection in between them and more energy is needed to overcome that attractive force.

hence have higher melting points .

Answer 4

Greater than what? The elements that make it up? Look a carbon, no boiling point, it is a solid at normal pressure until it sublimizes at a few thousand degrees. Carbon dioxide 'boils' at - 77 Celsius. So this compound boils at a temp less than one of its elements.

Answer 5

lol are u in gwc chem 110?

anyways.... polar compounds have a strong force of attraction between their atoms

Answer 6

Because the polar compounds are ionic.