Intermolecular Forces Review

Front

What are London dispersion forces?

Back

Weak intermolecular forces that arise from temporary dipoles in atoms or molecules, stronger in larger atoms or molecules.

Front

Which molecule has the strongest London forces: F2, Br2, I2, or Cl2?

Back

I2 has the strongest London forces due to its larger size and greater number of electrons.

Front

Define electronegativity.

Back

The tendency of an atom to attract shared electrons to itself.

Front

What type of intermolecular forces does a polar molecule exhibit?

Back

Dipole-dipole interactions and London dispersion forces.

Front

What type of intermolecular forces do nonpolar molecules exhibit?

Back

Only London dispersion forces.

Front

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

Back

London dispersion forces increase with molecular weight.

Front

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

Back

NH3 has the highest boiling point due to hydrogen bonding.

Front

What is hydrogen bonding?

Back

A strong type of dipole-dipole interaction that occurs between molecules containing hydrogen bonded to highly electronegative atoms like N, O, or F.

Front

What is the effect of intermolecular forces on boiling points?

Back

Stronger intermolecular forces result in higher boiling points.

Front

What are dipole-dipole interactions?

Back

Attractive forces between the positive end of one polar molecule and the negative end of another.