Suppose it is snowing outside and the air is saturated. The air temperature and dew point are both 15 degrees Fahrenheit, and the actual vapor pressure is 3 mb. If this air is brought indoors and warmed to 75 degrees Fahrenheit, what would the relative humidity of this air be, assuming that its moisture content does not change? (The saturation vapor pressure at 75 degrees Fahrenheit is 30 mb.)
A)5 percent
B)10 percent
C)30 percent
D)50 percent
E)100 percent

Question

Quizplus · Accepted Answer

The relative humidity (RH) can be calculated using the formula RH = (actual vapor pressure / saturation vapor pressure) * 100. Given that the actual vapor pressure is 3 mb and the saturation vapor pressure at 75 degrees Fahrenheit is 30 mb, the relative humidity when the air is warmed to 75 degrees Fahrenheit would be (3 / 30) * 100 = 10 percent.

Suppose It Is Snowing Outside and the Air Is Saturated