Multiple Choice
Which is the strongest type of intermolecular force present between separate H2O molecules?
66
views
13. Liquids, Solids & Intermolecular Forces
Intermolecular Forces
Multiple Choice
Which of the following substances has the highest boiling point?
A
NH_3
B
CO_2
C
CH_4
D
H_2O
Verified step by step guidance1
Identify the types of intermolecular forces present in each substance: NH_3, CO_2, CH_4, and H_2O. These forces influence boiling points significantly.
Recognize that NH_3 and H_2O can form hydrogen bonds because they contain N-H and O-H bonds, respectively, while CO_2 and CH_4 primarily exhibit London dispersion forces due to their nonpolar nature.
Understand that hydrogen bonding is a much stronger intermolecular force compared to dipole-dipole interactions or London dispersion forces, leading to higher boiling points.
Compare the strength of hydrogen bonding in NH_3 and H_2O. Water (H_2O) has stronger hydrogen bonding because oxygen is more electronegative than nitrogen and it can form two hydrogen bonds per molecule, whereas NH_3 forms fewer.
Conclude that H_2O has the highest boiling point among the given substances due to its strong hydrogen bonding, followed by NH_3, with CO_2 and CH_4 having much lower boiling points because of weaker intermolecular forces.
Related Videos
Related Practice
