Name _________________ Intermolecular Force of Attraction and Table H
1. The graph below shows the relationship between vapor pressure and temperature for substance X.
What is the normal boiling point for substance X?
1) 50°C
2) 20°C
3) 30°C
4) 40°C
2. As the temperature of a liquid increases, its vapor pressure
1) decreases
3) remains the same
2) increases
3. At which temperature is the vapor pressure of ethanol equal to 80. kPa?
1) 48C
2) 73C
3) 80C
4) 101C
4. Which compound has the lowest vapor pressure at 50°C?
1) ethanoic acid
2) ethanol
3) propanone
4) water
5. Which sample of water has the lowest vapor pressure?
1) 100 mL at 50ºC 2) 200 mL at 30ºC 3) 300 mL at 40ºC 4) 400 mL at 20ºC
6. Based on Reference Table H, which sample has the highest vapor pressure?
1) water at 20ºC
2) water at 80ºC
3) ethanol at 50ºC
4) ethanol at 65ºC
7. Which graph best represents the variation in the vapor pressure of water as temperature changes?
1)
2)
3)
4)
Intermolecular Force of Attraction and Table H
8. The graph below represents the vapor curves of four liquids.
Which liquid has the highest normal boiling point?
1) A
2) B
3) C
4) D
9. When the vapor pressure of a liquid is equal to the atmospheric pressure, the liquid will
1) freeze
2) boil
3) melt
4) condense
10. Base your answer to the following question on the diagrams below of four sealed flasks, each of which
contains H2O( ) at the temperature shown.
In which flask is the equilibrium vapor pressure of water the greatest?
1) 1
2) 2
3) 3
4) 4
11. The table below shows the normal boiling point of four compounds.
Which compound has the strongest intermolecular forces?
1) HF( )
2) CH 3Cl( )
3) CH 3F( )
4) HCl( )
12. Using your knowledge of chemistry and the information in Reference Table H, which statement
concerning propanone and water at 50°C is true?
1)
2)
3)
4)
Propanone has a higher vapor pressure and stronger intermolecular forces than water.
Propanone has a higher vapor pressure and weaker intermolecular forces than water.
Propanone has a lower vapor pressure and stronger intermolecular forces than water.
Propanone has a lower vapor pressure and weaker intermolecular forces than water.
Intermolecular Force of Attraction and Table H
13. A beaker contains both alcohol and water. These liquids can be separated by distillation because the liquids
have different
1) boiling points
2) densities
3) particle sizes
4) solubilities
Answer Key
Intermolecular Force of Attraction and Table H
1.
3
2.
2
3.
2
4.
1
5.
4
6.
4
7.
3
8.
4
9.
2
10.
4
11.
1
12.
2
13.
1