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 hydrogen bonding?

Back

Hydrogen bonding is a strong type of dipole-dipole interaction that occurs when hydrogen is bonded to highly electronegative atoms like nitrogen, oxygen, or fluorine.

Front

Does HF have hydrogen bonding?

Back

Yes, HF exhibits hydrogen bonding due to the presence of hydrogen bonded to fluorine.

Front

In a polar covalent bond, where do the electrons gather?

Back

Electrons gather mostly around the atom with the greatest electronegativity.

Front

What type of intermolecular forces are present in NH3?

Back

NH3 exhibits hydrogen bonding as its primary intermolecular force.

Front

Which substance has the weakest intermolecular forces based on boiling points?

Back

Substance C, boiling point of 25 °C, has the weakest intermolecular forces.

Front

What is the relationship between boiling point and intermolecular forces?

Back

Generally, substances with stronger intermolecular forces have higher boiling points, while those with weaker forces have lower boiling points.

Front

What are dispersion forces?

Back

Dispersion forces, also known as London dispersion forces, are weak intermolecular forces that arise from temporary dipoles in molecules.

Front

What is dipole-dipole interaction?

Back

Dipole-dipole interactions are attractive forces between the positive end of one polar molecule and the negative end of another polar molecule.

Front

How do intermolecular forces affect the state of matter?

Back

Intermolecular forces determine whether a substance is a solid, liquid, or gas at a given temperature and pressure.