Intermolecular Forces

Front

What are intermolecular forces?

Back

Intermolecular forces are the forces that occur between molecules, influencing their physical properties such as boiling and melting points.

Front

What type of intermolecular force is present in nonpolar molecules like I2, Br2, and Cl2?

Back

London dispersion forces.

Front

What is the primary intermolecular force in CO2?

Back

London dispersion forces.

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 hydrogen bonding?

Back

Hydrogen bonding is a strong type of dipole-dipole interaction that occurs when hydrogen is bonded to highly electronegative atoms like N, O, or F.

Front

Which molecule has the strongest London dispersion forces: Br2, HCl, H2S, or NH3?

Back

Br2, because it only has dispersion forces when interacting.

Front

What is the difference between intermolecular and intramolecular forces?

Back

Intermolecular forces are forces between molecules, while intramolecular forces are forces within a molecule that hold the atoms together.

Front

What factors affect the strength of London dispersion forces?

Back

The strength of London dispersion forces increases with the size of the molecules and the number of electrons.

Front

What type of intermolecular force is present in HCl?

Back

HCl exhibits dipole-dipole interactions and also London dispersion forces.

Front

What is the significance of intermolecular forces in determining boiling points?

Back

Stronger intermolecular forces generally lead to higher boiling points due to the increased energy required to separate the molecules.