Review Questions For Characteristics of Gases
11. If the particles in a sample of matter are attracted to each other but
can move past each other, the matter is a
a. solid. b. liquid. c. gas. d. plasma.
2. A sample of matter whose particles are close together and cannot
move past each other is
a. a solid. b. a liquid. c. a gas. d. viscous.
3. A gas does not have a definite volume because its particles are
a. essentially independent. b. cohesive.
c. adhesive. d. vibrating in place.
4. Condensation involves changing from a
a. solid to a gas. b. liquid to a gas.
c. gas to a liquid. d. gas to a solid.
5. If particles have little attraction for each other and can freely move
throughout the container, the particles are part of a
a. solid. b. liquid. c. gas. d. None of the above
6. A liquid becomes a gas during
a. evaporation. b. condensation. c. sublimation. d. deposition.
7. All changes of state are
a. physical changes. b. chemical changes.
c. evaporation. d. endothermic.
8. Which of the following processes might occur when an object is heated?
a. condensation b. melting c. deposition d. freezing
9. What causes a gas to exert pressure?
a. collisions b. density c. temperature d. Volume
10. At sea level, the average height of mercury in a barometer is
a. 760 mmHg. b. 1000 atmosphere. c. 76mmHg. d. 1mmH
11. Which one of the following is not a gas
a. H2 b. N2 c. O2 d. Mg
12. When the temperature of a gas is increased, volume of the gas
a. does not change b. increases c. decreases e. both increases and decreases
13. When the pressure of a gas is increased, volume of the gas
a. does not change b. increases c. decreases e. both increases and decreases
14. Which one of the following is not a unit of measure of the pressure,
a. atm b. mmHg c. PSI d. Kelvin
15. Which one of the following is not a unit of measure of the temperature,
a. atm b. Celsius c. Fahrenheit d. Kelvin
16. When the altitude increases (at higher elevations) the pressure,
a. does not change b. increases c. decreases e. both increases and decreases
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Short Answer Questions
1. When you describe properties of gases what letter symbols are used, provide at least one unit of measure of the property. Complete the following table.
Property Symbol Unit of measure
Volume
Temperature
Pressure
2. What is 500 mmHg expressed in atmospheres?
1atm = 760 mmHg
show for your calculations using unit conversions
3. Use the Boyle’s low equation to calculate the final volume when the pressure is increased from 1 atm to 2 atm, where initial volume is 4L.
Boyle’sLaw equation: P1V1 =P2V2
can move past each other, the matter is a
a. solid. b. liquid. c. gas. d. plasma.
2. A sample of matter whose particles are close together and cannot
move past each other is
a. a solid. b. a liquid. c. a gas. d. viscous.
3. A gas does not have a definite volume because its particles are
a. essentially independent. b. cohesive.
c. adhesive. d. vibrating in place.
4. Condensation involves changing from a
a. solid to a gas. b. liquid to a gas.
c. gas to a liquid. d. gas to a solid.
5. If particles have little attraction for each other and can freely move
throughout the container, the particles are part of a
a. solid. b. liquid. c. gas. d. None of the above
6. A liquid becomes a gas during
a. evaporation. b. condensation. c. sublimation. d. deposition.
7. All changes of state are
a. physical changes. b. chemical changes.
c. evaporation. d. endothermic.
8. Which of the following processes might occur when an object is heated?
a. condensation b. melting c. deposition d. freezing
9. What causes a gas to exert pressure?
a. collisions b. density c. temperature d. Volume
10. At sea level, the average height of mercury in a barometer is
a. 760 mmHg. b. 1000 atmosphere. c. 76mmHg. d. 1mmH
11. Which one of the following is not a gas
a. H2 b. N2 c. O2 d. Mg
12. When the temperature of a gas is increased, volume of the gas
a. does not change b. increases c. decreases e. both increases and decreases
13. When the pressure of a gas is increased, volume of the gas
a. does not change b. increases c. decreases e. both increases and decreases
14. Which one of the following is not a unit of measure of the pressure,
a. atm b. mmHg c. PSI d. Kelvin
15. Which one of the following is not a unit of measure of the temperature,
a. atm b. Celsius c. Fahrenheit d. Kelvin
16. When the altitude increases (at higher elevations) the pressure,
a. does not change b. increases c. decreases e. both increases and decreases
----------------------------------------------------------
Short Answer Questions
1. When you describe properties of gases what letter symbols are used, provide at least one unit of measure of the property. Complete the following table.
Property Symbol Unit of measure
Volume
Temperature
Pressure
2. What is 500 mmHg expressed in atmospheres?
1atm = 760 mmHg
show for your calculations using unit conversions
3. Use the Boyle’s low equation to calculate the final volume when the pressure is increased from 1 atm to 2 atm, where initial volume is 4L.
Boyle’sLaw equation: P1V1 =P2V2