An air mass is at 90 degrees F. It contains 20 grams of vapor/m^3. What is the relative humidity of this air mass? What would the relative humidity of this air mass be if its temperature were increased to 100 degrees F? What is the dew point of this air mass? The temperature is now expected to drop to 50 degrees F. How much water vapor (g/m^3) do you expect the air mass to lose?