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Water Vapor Capacity (gr/m3) 50 40 30 20 9 0 +++++| -5 0 5 10 15 20 25 30 35 Dewpoint Temperature °C HH 40 ◆ Series 1 An air parcel at a temperature of 25° C. is forced to rise over a 2.5 km. mountain The parcel contains 12 gr/m³ of water vapor. As the parcel rises, it will expand and cool at a rate of 10% km until it has cooled to its dewpoint. If the parcel continues to rise after it has reached its dewpoint, the condensing water will release heat and the parcel will cool more slowly, at the rate of 6° / km. An air parcel descending from altitude to sea level will compress and warm at 10° / km. Show any calculations. Sketch in the curve of the graph and mark all relevant points. 1. What is the dew point of the parcel? _ 2. What is the water vapor capacity of the parcel before it begins to rise? 3. What is the relative humidity of the parcel before it begins to rise? _ 4. To what altitude will the parcel rise before it has cooled to its dew point? 5. What will be the rate of cooling as the parcel continues to rise? _ 6. What will the temperature of the parcel be at the top of the mountain? _ 7. What will the temperature of the parcel be when it has returned to sea level? 8. How do you think the relative humidity of the parcel has changed? Why?

Water Vapor Capacity (gr/m3) 50 40 30 20 9 0 +++++| -5 0 5 10 15 20 25 30 35 Dewpoint Temperature °C HH 40 ◆ Series 1 An air parcel at a temperature of 25° C. is forced to rise over a 2.5 km. mountain The parcel contains 12 gr/m³ of water vapor. As the parcel rises, it will expand and cool at a rate of 10% km until it has cooled to its dewpoint. If the parcel continues to rise after it has reached its dewpoint, the condensing water will release heat and the parcel will cool more slowly, at the rate of 6° / km. An air parcel descending from altitude to sea level will compress and warm at 10° / km. Show any calculations. Sketch in the curve of the graph and mark all relevant points. 1. What is the dew point of the parcel? _ 2. What is the water vapor capacity of the parcel before it begins to rise? 3. What is the relative humidity of the parcel before it begins to rise? _ 4. To what altitude will the parcel rise before it has cooled to its dew point? 5. What will be the rate of cooling as the parcel continues to rise? _ 6. What will the temperature of the parcel be at the top of the mountain? _ 7. What will the temperature of the parcel be when it has returned to sea level? 8. How do you think the relative humidity of the parcel has changed? Why?

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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1. What is the dew point of the parcel? ____________
2. What is the water vapor capacity of the parcel before it begins to rise? ____________
3. What is the relative humidity of the parcel before it begins to rise? ____________
4. To what altitude will the parcel rise before it has cooled to its dew point? ____________
5. What will be the rate of cooling as the parcel continues to rise? ____________
6. What will the temperature of the parcel be at the top of the mountain? ____________
7. What will the temperature of the parcel be when it has returned to sea level? _________
8. How do you think the relative humidity of the parcel has changed ? ______________
 Why?

Water Vapor Capacity (gr/m3) 50 40 30 20 10 0 -5 0 |+++ 5 10 15 20 25 30 35 Dewpoint Temperature °C 40 ◆ Series 1 An air parcel at a temperature of 25° C. is forced to rise over a 2.5 km. mountain The parcel contains 12 gr/m³ of water vapor. As the parcel rises, it will expand and cool at a rate of 10% km until it has cooled to its dewpoint. If the parcel continues to rise after it has reached its dewpoint, the condensing water will release heat and the parcel will cool more slowly, at the rate of 6° / km. An air parcel descending from altitude to sea level will compress and warm at 10° / km. Show any calculations. Sketch in the curve of the graph and mark all relevant points. 1. What is the dew point of the parcel? 2. What is the water vapor capacity of the parcel before it begins to rise? 3. What is the relative humidity of the parcel before it begins to rise? 4. To what altitude will the parcel rise before it has cooled to its dew point? 5. What will be the rate of cooling as the parcel continues to rise? _ 6. What will the temperature of the parcel be at the top of the mountain? _ 7. What will the temperature of the parcel be when it has returned to sea level? 8. How do you think the relative humidity of the parcel has changed? Why?
Transcribed Image Text:Water Vapor Capacity (gr/m3) 50 40 30 20 10 0 -5 0 |+++ 5 10 15 20 25 30 35 Dewpoint Temperature °C 40 ◆ Series 1 An air parcel at a temperature of 25° C. is forced to rise over a 2.5 km. mountain The parcel contains 12 gr/m³ of water vapor. As the parcel rises, it will expand and cool at a rate of 10% km until it has cooled to its dewpoint. If the parcel continues to rise after it has reached its dewpoint, the condensing water will release heat and the parcel will cool more slowly, at the rate of 6° / km. An air parcel descending from altitude to sea level will compress and warm at 10° / km. Show any calculations. Sketch in the curve of the graph and mark all relevant points. 1. What is the dew point of the parcel? 2. What is the water vapor capacity of the parcel before it begins to rise? 3. What is the relative humidity of the parcel before it begins to rise? 4. To what altitude will the parcel rise before it has cooled to its dew point? 5. What will be the rate of cooling as the parcel continues to rise? _ 6. What will the temperature of the parcel be at the top of the mountain? _ 7. What will the temperature of the parcel be when it has returned to sea level? 8. How do you think the relative humidity of the parcel has changed? Why?
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