Intermolecular forces review

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 type of intermolecular force is present in ammonia (NH3)?

Back

Hydrogen bonding.

Front

What type of intermolecular force is present in chlorine gas (Cl2)?

Back

London dispersion forces.

Front

What explains the very high melting and boiling point of water?

Back

Strong hydrogen bonds between water molecules.

Front

Which molecule has the highest boiling point: H2, NH3, N2, or O2?

Back

NH3 (ammonia) has the highest boiling point due to hydrogen bonding.

Front

What type of intermolecular force is present in hydrogen fluoride (HF)?

Back

Hydrogen bonding.

Front

Define 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

What is the significance of hydrogen bonding in water?

Back

Hydrogen bonding in water leads to its high boiling point, high specific heat, and unique properties like ice being less dense than liquid water.

Front

How do dipole-dipole interactions occur?

Back

Dipole-dipole interactions occur between polar molecules where the positive end of one molecule is attracted to the negative end of another.

Front

What is the relationship between intermolecular forces and boiling point?

Back

Generally, stronger intermolecular forces result in higher boiling points due to the increased energy required to separate the molecules.