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Calculate and compare the mol fraction of water vapor (in PPM) for two cases: 90% relative humidity at T = 10 C and 90% relative humidity at 30o C. In both cases the atmospheric pressure is 97.0 kPa. What do you conclude? Explain briefly why you "see your breath" in cold weather, when the air is typically at low relative humidity (<20%).

Calculate and compare the mol fraction of water vapor (in PPM) for two cases: 90% relative humidity at T = 10 C and 90% relative humidity at 30o C. In both cases the atmospheric pressure is 97.0 kPa. What do you conclude? Explain briefly why you "see your breath" in cold weather, when the air is typically at low relative humidity (<20%).

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Calculate and compare the mol fraction of water vapor (in PPM) for two cases: 90% relative humidity at T = 10 C and 90% relative humidity at 30o C. In both cases the atmospheric pressure is 97.0 kPa. What do you conclude? 

Explain briefly why you "see your breath" in cold weather, when the air is typically at low relative humidity (<20%).

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