3) What is the strongest intermolecular force in the following compound? a. London dispersion force NH3: CI: b. dipole-dipole c. hydrogen bonding d. ion-dipole HO 30 HO dopamine salt

8.45 Describe how interactions between molecules affect the vapor pressure of a liquid.

What are intermolecular forces? How do they differ from intramolecular forces? What are dipole-dipole forces? How do typical dipole-dipole forces differ from hydrogen bonding interactions? In what ways are they similar? What are London dispersion forces? How do typical London dispersion forces differ from dipole-dipole forces? In what ways are they similar? Describe the relationship between molecular size and strength of London dispersion forces. Place the major types of intermolecular forces in order of increasing strength. Is there some overlap? That is, can the strongest London dispersion forces be greater than some dipole-dipole forces? Give an example of such an instance.

What feature characterizes the dynamic equilibrium between a liquid and its vapor in a closed container?