Bundle: An Introduction to Physical Science, 14th Loose-leaf Version + WebAssign Printed Access Card, Single Term. Shipman/Wilson/Higgins/Torres
Bundle: An Introduction to Physical Science, 14th Loose-leaf Version + WebAssign Printed Access Card, Single Term. Shipman/Wilson/Higgins/Torres
14th Edition
ISBN: 9781305719057
Author: James Shipman, Jerry D. Wilson, Charles A. Higgins, Omar Torres
Publisher: Cengage Learning
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Chapter 19, Problem 6E

(a)

To determine

The relative humidity.

(a)

Expert Solution
Check Mark

Answer to Problem 6E

The relative humidity is 65% .

Explanation of Solution

Given info: The dry-bulb and wet-bulb readings of a psychrometer are 90 °F and 80°F respectively.

Explanation:

Wet-bulb depression is the difference in the dry-bulb and wet-bulb reading.

The expression for the wet-bulb depression is as follows,

ΔT=Dry bulb readingWet bulb reading

Here,

ΔT is the wet-bulb depression

Substitute 90 °F for Dry bulb reading and 80°F for Wet bulb reading .

ΔT = 90 ° 80 °F= 10 °F

Refer table H.1 in Appendix H provided in the textbook to find the relative humidity.

The relative humidity of the air is 65% .

Conclusion:

Therefore, the relative humidity is 65% .

(b)

To determine

The dew point.

(b)

Expert Solution
Check Mark

Answer to Problem 6E

The dew point of the air is 86°F .

Explanation of Solution

Given info: The dry-bulb and wet-bulb readings of a psychrometer are 90 °F and 80°F respectively.

Explanation:

Wet-bulb depression is the difference in the dry-bulb and wet-bulb reading.

The expression for the wet-bulb depression is as follows,

ΔT=Dry bulb readingWet bulb reading

Here,

ΔT is the wet-bulb depression

Substitute 90 °F for Dry bulb reading and 80°F for Wet bulb reading .

ΔT = 90 ° 80 °F= 10 °F

Refer table H.2 in Appendix H provided in the textbook to find the dew point.

The dew point is 86°F .

Conclusion:

The dew point of the air is 86°F .

(c)

To determine

The maximum moisture capacity of the air.

(c)

Expert Solution
Check Mark

Answer to Problem 6E

The maximum moisture capacity of the air is 14.8gr/ft3 .

Explanation of Solution

Given info: The dry-bulb and wet-bulb readings of a psychrometer are 90 °F and 80°F respectively.

Explanation:

Wet-bulb depression is the difference in the dry-bulb and wet-bulb reading.

The expression for the wet-bulb depression is as follows,

ΔT=Dry bulb readingWet bulb reading

Here,

ΔT is the wet-bulb depression

Substitute 90 °F for Dry bulb reading and 80°F for Wet bulb reading .

ΔT = 90 ° 80 °F= 10 °F

Refer table H.1 in Appendix H provided in the textbook to find the maximum moisture capacity of the air.

The maximum moisture capacity of the air is 14.8gr/ft3 .

Conclusion:

The maximum moisture capacity of the air is 14.8gr/ft3 .

(d)

To determine

The actual moisture content of the air.

(d)

Expert Solution
Check Mark

Answer to Problem 6E

The actual moisture content of the air is 5.8gr/ft3 .

Explanation of Solution

Given info: The dry-bulb and wet-bulb readings of a psychrometer are 90 °F and 80°F respectively.

Explanation:

The expression for the relative humidity is as follows,

% RH = (ACMC)(100 %) (1)

Here,

% RH is the relative humidity in percentage

AC is the actual moisture content of the air

MC is the maximum moisture capacity of the air

Rearrange equation (1) to get an expression for the actual moisture content of the air.

AC=(MC100 %)(% RH)

Substitute 14.8gr/ft3 for MC and 65% for % RH .

AC=(14.8gr/ft3100 %)(65%)=9.6gr/ft3

The actual moisture content of the air is 9.6gr/ft3 .

Conclusion:

The actual moisture content of the air is 9.6gr/ft3 .

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Chapter 19 Solutions

Bundle: An Introduction to Physical Science, 14th Loose-leaf Version + WebAssign Printed Access Card, Single Term. Shipman/Wilson/Higgins/Torres

Ch. 19.5 - Prob. 2PQCh. 19 - KEY TERMS 1. atmospheric science (Intro) 2....Ch. 19 - Prob. BMCh. 19 - Prob. CMCh. 19 - Prob. DMCh. 19 - Prob. EMCh. 19 - KEY TERMS 1. atmospheric science (Intro) 2....Ch. 19 - Prob. GMCh. 19 - Prob. HMCh. 19 - Prob. IMCh. 19 - Prob. JMCh. 19 - Prob. KMCh. 19 - Prob. LMCh. 19 - Prob. MMCh. 19 - Prob. NMCh. 19 - Prob. OMCh. 19 - Prob. PMCh. 19 - Prob. QMCh. 19 - KEY TERMS 1. atmospheric science (Intro) 2....Ch. 19 - Prob. SMCh. 19 - Prob. TMCh. 19 - Prob. UMCh. 19 - Prob. VMCh. 19 - Prob. WMCh. 19 - Prob. XMCh. 19 - Prob. YMCh. 19 - Prob. ZMCh. 19 - Prob. AAMCh. 19 - Prob. BBMCh. 19 - Prob. CCMCh. 19 - Prob. DDMCh. 19 - Prob. 1MCCh. 19 - Prob. 2MCCh. 19 - Photosynthesis is responsible for the atmospheric...Ch. 19 - What regulates the Earths average temperature?...Ch. 19 - Prob. 5MCCh. 19 - Prob. 6MCCh. 19 - Prob. 7MCCh. 19 - Prob. 8MCCh. 19 - Prob. 9MCCh. 19 - Prob. 10MCCh. 19 - What is the cloud root name that means heap?...Ch. 19 - Prob. 12MCCh. 19 - Prob. 1FIBCh. 19 - Prob. 2FIBCh. 19 - Prob. 3FIBCh. 19 - Prob. 4FIBCh. 19 - One standard atmosphere of pressure is ___ lb2....Ch. 19 - Prob. 6FIBCh. 19 - Prob. 7FIBCh. 19 - Prob. 8FIBCh. 19 - Prob. 9FIBCh. 19 - Prob. 10FIBCh. 19 - Prob. 11FIBCh. 19 - Prob. 12FIBCh. 19 - Prob. 1SACh. 19 - Prob. 2SACh. 19 - Prob. 3SACh. 19 - Prob. 4SACh. 19 - Prob. 5SACh. 19 - Prob. 6SACh. 19 - Prob. 7SACh. 19 - Prob. 8SACh. 19 - Prob. 9SACh. 19 - In terms of Rayleigh scattering, why is it...Ch. 19 - Prob. 11SACh. 19 - Prob. 12SACh. 19 - What are the four fundamental atmospheric...Ch. 19 - Prob. 14SACh. 19 - Prob. 15SACh. 19 - When is the relative humidity 100%? It may be...Ch. 19 - Which way, relative to the wind direction, does a...Ch. 19 - Prob. 18SACh. 19 - Prob. 19SACh. 19 - What is a convection cycle, and what are the...Ch. 19 - Prob. 21SACh. 19 - Why does weather generally move from west to east...Ch. 19 - Prob. 23SACh. 19 - Prob. 24SACh. 19 - Name the cloud family for each of the following:...Ch. 19 - Prob. 26SACh. 19 - Prob. 27SACh. 19 - Why are clouds generally white, while some are...Ch. 19 - Visualize the connections and give answers in the...Ch. 19 - (a) Why does the land lose heat more quickly at...Ch. 19 - Prob. 2AYKCh. 19 - Prob. 3AYKCh. 19 - Prob. 4AYKCh. 19 - Water leaks from a cup with a hole, as shown in ...Ch. 19 - Express the approximate thicknesses of the (a)...Ch. 19 - Prob. 2ECh. 19 - If the air temperature is 70F at sea level, then...Ch. 19 - If the air temperature is 20C at sea level, then...Ch. 19 - On a day when the air temperature is 85F, the...Ch. 19 - Prob. 6ECh. 19 - On a very hot day with an air temperature of 105F,...Ch. 19 - On a winter day, a psychrometer has a dry-bulb...Ch. 19 - The dry-bulb and wet-bulb thermometers of a...Ch. 19 - Prob. 10ECh. 19 - On a day when the air temperature is 70F, a fellow...Ch. 19 - On another day with the same air temperature...
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