Intermolecular Forces

Front

What are intermolecular forces?

Back

Intermolecular forces are the forces of attraction or repulsion between neighboring particles (molecules, atoms, or ions). They play a crucial role in determining the physical properties of substances.

Front

What is a hydrogen bond?

Back

A hydrogen bond is a type of strong dipole-dipole attraction that occurs between a hydrogen atom covalently bonded to a highly electronegative atom (like O, N, or F) and another electronegative atom.

Front

Can H2O create a hydrogen bond?

Back

Yes, H2O can create hydrogen bonds due to the presence of hydrogen atoms bonded to oxygen, which is highly electronegative.

Front

Rank the following in order of strength: intramolecular forces, London forces, hydrogen bond, dipole-dipole attraction.

Back

Intramolecular forces > hydrogen bond > dipole-dipole > London forces.

Front

What type of intermolecular force is present in HCl?

Back

HCl exhibits dipole-dipole interactions due to the polar nature of the H-Cl bond.

Front

Which substance would likely have the highest boiling point: H2O, CH4, or NH3?

Back

H2O would have the highest boiling point due to strong hydrogen bonding.

Front

What are London dispersion forces?

Back

London dispersion forces are weak intermolecular forces that arise from temporary dipoles in molecules, occurring in all atoms and molecules.

Front

How do intermolecular forces affect boiling points?

Back

Stronger intermolecular forces result in higher boiling points, as more energy is required to overcome these forces.

Front

What is dipole-dipole attraction?

Back

Dipole-dipole attraction is the interaction between the positive end of one polar molecule and the negative end of another polar molecule.

Front

Which type of intermolecular force is the weakest?

Back

London dispersion forces are the weakest type of intermolecular force.