CHEM 162 EXPERIMENT 3 INTERMOLECULAR FORCES FINAL PAPER EXAM QUESTIONS ACCURATE ANSWERS FULL SOLUTION

CHEM 162 EXPERIMENT 3 INTERMOLECULAR FORCES FINAL PAPER EXAM QUESTIONS
ACCURATE ANSWERS FULL SOLUTION
CHEM 162 Experiment 3 Intermolecular Forces
Final Paper 2026/2027 Questions Questions and
Answers Verified Solutions Latest Update

Question:
How does polarity affect intermolecular forces?

Answer:
The more polar the molecules, the stronger the strength of the intermolecular forces.



Question:
What are dipole-dipole intermolecular forces?

Answer:
Opposite charges on polar molecules attract.



Question:
How does molecular size relate to London dispersion forces?

Answer:
The larger the molecule (more electrons), the greater the chance of momentary dipoles, resulting in
more London dispersion forces.



Question:
What is the typical state of matter for nonpolar molecular substances?

Answer:
Gases (sometimes liquids if heavy enough) due to weak intermolecular forces.



Question:

, What is the typical state of matter for ionic substances?

Answer:
Solids due to strong intermolecular forces.



Question:
What is the typical state of matter for metallic substances?

Answer:
Solids due to strong intermolecular forces.



Question:
Why does ammonia have a higher boiling point than methane?

Answer:
Ammonia is polar and has dipole-dipole and hydrogen bonding forces, which are stronger than the
dispersion forces in methane.



Question:
What explains the difference in boiling points between HF and HCl?

Answer:
HF has hydrogen bonding (stronger) while HCl has dipole-dipole forces (weaker).



Question:
Why does LiCl have a higher boiling point than HCl?

Answer:
LiCl has strong ionic bonds, while HCl has weaker dipole-dipole forces.



Question:
What is the relationship between the size of C2H6 and C8H18 and their boiling points?