Question

Two liquids- one polar, one nonpolar- have the same molar mass. Which one has the higher boiling point?

Answer 1

Answer:

D. the polar liquid will have the higher boiling point, since its molecules have dipole-dipole interactions.

Explanation:

Dipole-Dipole interactions take place only between polar molecules.

They consist of attractions between the negative end of a polar molecule and the positive end of another polar molecule. For example, between the O atom and the H atom in water.

These attractions are not present in a non-polar liquid, so its molecules will be more loosely held together and its boiling point will be lower.

Answer 2

Answer: d. the polar liquid will have the higher boiling point, since its molecules have dipole-dipole interactions.

Explanation: