Intra- and Intermolecular Forces Short

Front

What is hydrogen bonding?

Back

A strong type of dipole-dipole attraction that occurs between molecules containing hydrogen bonded to highly electronegative atoms like nitrogen, oxygen, or fluorine.

Front

Define dipole-dipole forces.

Back

Intermolecular forces that occur between polar molecules, where positive and negative ends attract each other.

Front

What are London dispersion forces?

Back

Weak intermolecular forces arising from temporary dipoles in molecules, present in all molecules but more significant in nonpolar ones.

Front

How do intermolecular forces affect boiling points?

Back

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

Front

What is the difference between intramolecular and intermolecular forces?

Back

Intramolecular forces are the forces within a molecule (like covalent bonds), while intermolecular forces are the forces between molecules.

Front

Rank the following in order of strength: covalent bond, hydrogen bond, dipole-dipole attraction, London forces.

Back

Covalent bond > Hydrogen bond > Dipole-dipole attraction > London forces.

Front

What is a polar molecule?

Back

A molecule that has a net dipole moment due to the presence of polar bonds, resulting in a positive and negative end.

Front

What is a nonpolar molecule?

Back

A molecule that does not have a net dipole moment; the charge distribution is even, and it does not have distinct positive or negative ends.

Front

Explain the term 'dipole'.

Back

A dipole refers to a separation of charges within a molecule, resulting in a positive end and a negative end.

Front

What factors influence the strength of intermolecular forces?

Back

Factors include molecular size, shape, polarity, and the presence of hydrogen bonds.