Chapter 8: Q. 8.65 (page 281)
At which of the following diagrams represents a gas sample that exerts the:
a. lowest pressure?
b. highest pressure?

Short Answer
a. The lowest pressure in the diagram :
.
b. The highest pressure in the diagram :
.
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Chapter 8: Q. 8.65 (page 281)
At which of the following diagrams represents a gas sample that exerts the:
a. lowest pressure?
b. highest pressure?

a. The lowest pressure in the diagram :
.
b. The highest pressure in the diagram :
.
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A gas with a volume of 4.0 L is in a closed container. Indicate the changes (increases, decreases, does not change) in pressure when the volume undergoes the following changes at constant temperature and amount of gas:
a. The volume is compressed to L.
b. The volume expands to L.
c. The volume is compressed to L
Use the words inspiration and expiration to describe the part of the breathing cycle that occurs as a result of each of the following:
a. The diaphragm contracts.
b. The volume of the lungs decreases.
c. The pressure within the lungs is less than that of the atmosphere.
Use the kinetic molecular theory of gases to explain each of the following:
In a gas mixture, the partial pressures are nitrogen , oxygen , and helium . What is the total pressure, in Torr, exerted by the gas mixture?
A balloon is filled with helium gas at a partial pressure of and neon gas with a partial pressure of . For each of the following changes (a to e) of the initial balloon, select the diagram (A, B, or C) that shows the final volume of the balloon:

a. The balloon is put in a cold storage unit (do not change).
b. The balloon floats to a higher altitude where the pressure is less (do not change).
c. All of the neon gas is removed (do not change).
d. The Kelvin temperature doubles and half of the gas atoms leak out (does not change).
e.gas is added (do not change).
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