Refrigeration and Air Conditioning Air Conditioning Properties of Moist Air (Psychrometric Properties)
1 kg of moist air of RH 70% at 21°C is cooled at a constant pressure of 1 bar to 5°C. The vapor pressure at 21°C and 5°C are 0.025 bar and 0.0087 bar. The percentage of water vapor that condenses into water, at 5°C is
1
66%
2
85%
3
51%
4
17%