Ambient pressure, temperature and relative humidity at a location are 101 kPa, 300 K, and 60% respectively. The saturation pressure of water at 300 K is 3.6 kPa. The specific humidity of ambient air is _______ g/kg of dry air.
13.6
The water-vapour pressure is 0.6(3.6) = 2.16 kPa. The humidity ratio is \(\omega=0.622\frac{2.16}{101-2.16}=0.01359\ \mathrm{kg/kg_{dry\ air}}\), or 13.6 g/kg of dry air.
Important Questions from Properties of Moist Air (Psychrometric Properties)
Spray humidifying is the process of adding moisture to the air by passing it through
A. Chiller
B. Air conditioning plant
C. WashersDew point temperature is the temperature at which condensation begins when the air is cooled at constant
Which of the following increases during sensible heating of moist air
1. Relative Humidity
2. Humidity Ratio
3. Wet bulb temperature
4. Specific volume
Select the correct answer from codes given below:
Relative humidity is the ratio of:
In a saturated air-water vapour mixture, the
