At 25 °C air is saturated with 20 g of water vapour per kg of air. If the air contains 15 g of water vapour per kg at the same temperature the relative humidity is:
A. 15%
B. 30%
C. 60%
D. 75%
Answer:D
At 25 °C air is saturated with 20 g of water vapour per kg of air. If the air contains 15 g of water vapour per kg at the same temperature the relative humidity is:
A. 15% B. 30% C. 60% D. 75%