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Mechanical Engineering · Q279

Refrigeration And Air Conditioning

Engineering and GATE · Mechanical Engineering · question 279

Q279

The humidity ratio or specific humidity is the mass of water vapour present in

A.
1 m3 of wet air
B.
1 m3 of dry air
C.
1 kg of wet air
D.
1 kg of dry air
Answer

Answer: Option D

Solution

Answer: Option D
Solution:
The humidity ratio of moist air can be expressed with:
• The mass of water vapor in the humid air - to the mass of dry air
• The partial pressure of vapor in the air - to the partial pressure of the dry air