What is the relative humidity of air at 37° C if the actual water vapor pressure is 33 mm Hg?
a. 89% c. 70%
b. 75% d. 25%
ANS: C
RH = [content(AH)/capacity] ? 100%.
(33 mm Hg/47 mm Hg [water vapor pressure at body temperature]) ? 100% = 70%.
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