How are the following quantities affected by stronger intermolecular forces?
(a) vapor pressure
(b) boiling point

• A. Stronger intermolecular forces decrease the vapor pressure and increase the boiling point.
• B. Stronger intermolecular forces increase the vapor pressure and increase the boiling point.
• C. Stronger intermolecular forces increase the vapor pressure and decrease the boiling point.
• D. Stronger intermolecular forces decrease the vapor pressure and decrease the boiling point.

Answer: (A)