GATE ME 2021 Set 2 — Question 40
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Thermodynamics → Refrigeration & Air Conditioning → Psychrometric Chart & Moist Air
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Question
Ambient pressure, temperature, and relative humidity at a location are , , and , respectively. The saturation pressure of water at is . The specific humidity of ambient air is ________ .
Correct answer
(D) 13.6
Solution
Given:
Total pressure () =
Temperature () =
Relative humidity () =
Saturation pressure of water at () = Partial pressure of water vapor () is calculated as:Specific humidity () in is given by:To convert to :Rounding to one decimal place, we get . Thus, option (D) is correct.
Total pressure () =
Temperature () =
Relative humidity () =
Saturation pressure of water at () = Partial pressure of water vapor () is calculated as:Specific humidity () in is given by:To convert to :Rounding to one decimal place, we get . Thus, option (D) is correct.
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