Exercise 20: humidity name cise 20 problems-part iii (english units) the following chart (round off relative humidity to the nearest percent) misdng ratio air teapaturate ge relative humidity (%) ng ratioair temperature saturation mixing ratio (g/kg (g/kg) 2.8 2.8 c°f) 30°f 90°f 13.2 11.1 36.5 22.3 the air inside a room is at a temperature of 65°f and has a mixing ratio of 5.2 g/kg. (a) (b) (c) 2· what is the relative humidity? what is the dew point? if the mixing ratio remains the same, but the temperature of the room increases to 80°f, what is the new relative humidity? 3. the air inside a room is at a temperature of 70°f and has a mixing ratio of 7.6 g/kg. 20.8% (a) what is the relative humidity? (b) what is the dew point? (c) if the room temperature decreases by 10°f per hour, how many (d) after reaching saturation, if the temperature of the room hours will it take for the air to reach saturation? hours continues to decrease for one more hour, how many grams of water vapor (per kg of air) will have had to condense out of the air to maintain a relative humidity of 100%?