Question

The air inside a room is at a temperature of 70°F and has a mixing ratio of 7.6 g/kg. What is the specific humidity of the air in the room?

A) 7.6 g/kg
B) 14.2 g/kg
C) 22.8 g/kg
D) 70.0 g/kg

Answer 1

The specific humidity is the mass of water vapor per unit mass of dry air, and since the mixing ratio given is 7.6 g/kg, it is also the specific humidity.

Step-by-step explanation:

The specific humidity of the air in the room at 70°F having a mixing ratio of 7.6 g/kg is simply the mixing ratio itself because the specific humidity is the mass of water vapor per unit mass of dry air, which is what the given mixing ratio represents. Therefore, the specific humidity of the air is 7.6 g/kg.