Question: A 40-m3 room contains air at 30C and a total pressure of 90 kPa with a relative humidity of 75 percent. The mass of dry

A 40-m3 room contains air at 30°C and a total pressure of 90 kPa with a relative humidity of 75 percent. The mass of dry air in the room is
(a) 24.7 kg (b) 29.9 kg (c) 39.9 kg
(d) 41.4 kg (e) 52.3 kg

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