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 type of intermolecular force is present in all substances, regardless of polarity?

Back

London dispersion forces are present in all substances, regardless of their polarity.

Front

Does CH4 have hydrogen bonding?

Back

No, CH4 does not have hydrogen bonding because it lacks a highly electronegative atom (like N, O, or F) bonded to hydrogen.

Front

What type of intermolecular force is responsible for hydrogen bonding?

Back

Hydrogen bonding occurs when hydrogen is covalently bonded to a highly electronegative atom (N, O, or F) and is attracted to another electronegative atom.

Front

Which substances exhibit London dispersion forces?

Back

All substances exhibit London dispersion forces, but they are the only type of intermolecular force in nonpolar molecules.

Front

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

Back

London dispersion forces are the only type of intermolecular force present in I2, Br2, and Cl2, as they are nonpolar molecules.

Front

Which substance would have the weakest intermolecular forces of attraction?

Back

CH4 would have the weakest intermolecular forces of attraction compared to NaCl, H2O, and MgF2.

Front

What is hydrogen bonding?

Back

Hydrogen bonding is a strong type of dipole-dipole attraction that occurs between molecules when hydrogen is bonded to a highly electronegative atom.

Front

What are dipole-dipole forces?

Back

Dipole-dipole forces are intermolecular forces that occur between polar molecules, where positive and negative ends attract each other.

Front

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

Back

Stronger intermolecular forces result in higher boiling points, as more energy is required to separate the molecules.