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WCP%201%20ATMS%20120A - The temperature of the mango juice...

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ATMS 120A/ESES 120A Fall Semester 2009 Name: _____________________________ Weekly Challenge Problem #1: Moisture Due: Tuesday, Sept. 8, 2009 (Same as problem #1 on p. 16 of textbook) On a very hot day you decide to relax with a friend and enjoy a fruity cup of mango juice. You have ice in the cup and also a thermometer for a swizzle stick to stir the drink. As the mango juice cup cools (because of the ice), moisture suddenly starts condensing on the outside of the cup.
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Unformatted text preview: The temperature of the mango juice in the cup is 20 ° C when this happens. The outside air temperature is 30 ° C. (a) What is the dewpoint temperature of the air (in °C and °F)? (b) Estimate the vapor pressure in the atmosphere. (Hint: Use Fig. 1.9) (c) What is the saturation vapor pressure in the atmosphere? (d) Estimate the relative humidity (%) of the air. (e) Why did moisture condense on the outside of the cup?...
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