Meteorology Chapter 5 Questions

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Chapter 5, Review Questions
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1. How does Dalton’s law apply to the atmosphere?

2. Provide a definition of air pressure that applies to Earth’s surface and any altitude within the atmosphere.

3. Compare the advantages and disadvantages of mercury barometer versus an aneroid barometer.

4. Explain how air pressure tendency can be a useful indicator of future weather.

5. Air is a compressible mixture of gases. How does this property of air affect the rate at which air pressure decreases with increasing altitude?

6. How does a change in temperature affect air density? How does a change in humidity affect air density?

7. Why does a cold, dry air mass exert a greater surface air pressure than an equally cold but more humid air mass?

8. Why are air pressure readings adjusted to what they would be if the weather station were actually located at sea level?

9. Distinguish between Charles’ law and Boyle’s law.

10. Why is the dry adiabatic lapse rate greater than the moist adiabatic lapse rate?

Chapter 5, Critical Thinking Questions

________________________________________________________________________

1. Is there some altitude which clearly marks the top of the atmosphere? Explain your response.

2. On televised weathercasts, air pressure is often reported in units of length (inches) rather than units of pressure (millibars). Explain why.

3. On a particularly warm and humid evening, a sportscaster comments that baseballs hit to the outfield “will not carry far in this heavy air.” How valid is the sportscaster’s observation?

4. If water is used in place of mercury in a class-tube barometer, what is the required height of the tube? The density of mercury (Hg) is 13.6 g/cm3 and the density of water is 1.0 g/cm3.

5. At Minneapolis, MN, the air…...

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