Practice Composition Of Dry Air (by Volume) (1.1)

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6 sample questions

Question 1.
What is the primary component of dry air?
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It's the most abundant gas.
Question 2.
What percentage of dry air is composed of oxygen?
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It's less than nitrogen but more than argon.
3Question 3.
What is the approximate percentage of nitrogen in dry air?
- 78.09%
- 20.95%
- 0.93%
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Look for which gas has the highest proportion.
4Question 4.
True or False: Carbon dioxide makes up 0.93% of dry air.
- True
- False
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Remember the correct percentage.
Question 5.
If the volume of dry air is 1000 liters, how many liters would each of the major gases occupy based on their percentage compositions?
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Apply the percentages to the total volume.
Question 6.
Explain how variations in altitude affect air composition and properties, focusing on temperature fluctuations.
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Think about how mountain climbers notice changes in breathing as they go higher.

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