Question

Air at 50.0% relative humidity is cooled isobarically at 1 atm absolute from 90.0°C to 15.0°C.

a. Estimate the dew point and the degrees of superheat of the air at 90.0°C.

Dew point: °C

Degrees of superheat: °C


b. How much water condenses (mol) per cubic meter of feed gas? (See Example 6.3–2)

mol


c. Suppose a sample of the 90.0°C air is put in a closed variable-volume chamber containing a mirror and the pressure is raised at constant temperature until a mist forms on the mirror.

At what pressure (atm) would the mist form? (Assume ideal gas behavior.)

atm

Answer 1