Suppose it is snowing outside and the air is saturated. The air temperature and dew point are both 15°F, and the actual vapor pressure is 3 mb. If this air is brought indoors and warmed to 75°F, what would the relative humidity of this air be, assuming that its moisture content does not change? (The saturation vapor pressure at 75°F is 30 mb)

a. 5 percent
b. 10 percent
c. 30 percent
d. 50 percent
e. 100 percent


ANSWER: b

Environmental & Atmospheric Sciences

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