Name ________________
Table H Vapor Pressure of 4 Liquids
Date:_________________
1. As the temperature of a liquid increases, its vapor pressure
1) decreases
2) increases
3) remains the same
2. At which temperature is the vapor pressure of ethanol equal to 80. kPa?
1) 48ºC
2) 73ºC
3) 80ºC
4) 101ºC
3. Which sample of water will have the highest vapor pressure?
1) 10.0 ml at 62°C 2) 20.0 ml at 52°C 3) 30.0 ml at 42°C 4) 40.0 ml at 32°C
4. Which graph best represents the variation in the vapor pressure of water as temperature changes?
1)
2)
3)
4)
5. Which compound has the lowest vapor pressure at 50°C?
1) ethanoic acid
2) ethanol
3) propanone
4) water
6. 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.
7. 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
8. When the vapor pressure of a liquid is equal to the atmospheric pressure, the liquid will
1) freeze
2) boil
3) melt
4) condense
9. 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
Chemistry!
Table H Vapor Pressure of 4 Liquids
10. Base your answer to the following question on 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
Chemistry!
Answer Key
Table H Vapor Pressure of a Liquid
1.
2
2.
2
3.
1
4.
3
5.
1
6.
2
7.
4
8.
2
9.
3
10.
4
Chemistry!