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 exists in HBr?

Back

Dipole-dipole forces.

Front

How do intermolecular forces affect boiling points?

Back

The weaker the intermolecular forces of a substance, the lower the boiling point.

Front

Which molecule has the weakest intermolecular forces?

Back

F2 (Fluorine gas) has the weakest intermolecular forces.

Front

What elements must hydrogen bond with to form hydrogen bonds?

Back

Hydrogen must bond with highly electronegative elements such as fluorine, oxygen, and nitrogen.

Front

How do dipole-dipole forces compare to other intermolecular forces?

Back

Dipole-dipole forces are stronger than London dispersion forces and weaker than ion-dipole interactions.

Front

What are London dispersion forces?

Back

London dispersion forces are weak intermolecular forces that arise from temporary dipoles in molecules due to the movement of electrons.

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 fluorine, oxygen, or nitrogen.

Front

What is the relationship between molecular size and London dispersion forces?

Back

As molecular size increases, London dispersion forces also increase due to a larger electron cloud.

Front

What is the significance of electronegativity in intermolecular forces?

Back

Electronegativity determines the polarity of bonds and the strength of dipole-dipole interactions; more electronegative atoms create stronger dipoles.