The air in a room is at 25 °C and a total pressure of 101.325 kPa...
The air in a room is at 25 °C and a total pressure of 101.325 kPa . Air contains water vapor with a partial pressure of 1.76 kPa.
a. Calculate the air humidity and relative humidity.
b. Since you intend to use this air for drying fre sh fruits you plan to heat up the air to 50°C. Once you accomplish that, what would be the new relative humidity of the air if the moisture content is maintained?
c. Intuitively you know that to dry your fresh fruits you need to increase the temperature of the air. Using the concept of relative humidity, can you explain why changing the air temperature is a good idea?
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The air in a room is at 25 °C and a total pressure of 101.325
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A moist air of 25 °C and 200 kPa with relative humidity of 50%
is mixed with nitrogen of 25 °C and 200 kPa. Then, the mixture is
expanded through a turbine to 100 kPa. Assuming the turbine is
ideal, determine the minimum nitrogen and moist air mole ratio
(kmol N2/kmol moist air) that does not induce condensation within
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dry air, and nitrogen as 1.4.
3. (10 points) A...
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