Name ________________________________ Hour_____
IMFs Review
1. Draw pictures of what molecules look like in solids, liquids, and gases. Which has the highest energy?
2. Fill in the table below
Phase change
Starting Phase
Ending Phase
Endothermic/Exothermic
Melting
Deposition
Sublimation
Condensation
Freezing
vaporization
3. List the three types of intermolecular forces from strongest to weakest.
4. List three types of bonds that are intramolecular forces.
5. Are intramolecular or intermolecular forces stronger?
6. State whether each molecule below is polar or nonpolar and state the IMF it experiences
a. NH3
g. HBr
b. CH4
h. C6H12
c. SiF4
i.
CO2
d. H2O
j.
H2S
e. PCl3
k. HF
f.
l.
CH3F
O2
7. Describe how you can lower the boiling point of a liquid. How does this relate to boiling water on a mountain
top?
8. Describe a liquid with a low viscosity vs. a high viscosity. Give examples.
9. Why is I2 a solid at room temperature while Cl2 is a gas?
10. How do IMFs affect surface tension of a liquid?
11. The stronger the IMF, the liquid will vaporize (FASTER or SLOWER).
12. The weaker the IMF, the liquid will vaporize (FASTER or SLOWER).
13. Polar molecules will dissolve ____________________ molecules. Nonpolar molecules will dissolve
_______________ molecules.