HW6.3. 221 PS6_1c molal sat balances
Moist air at atmospheric presure, 92 C and relative humidity 44% enters a cooler where it is cooled isobarically at 1 atm to a temperature of 21 C. (Isobaric means at constant pressure)

The Antoine equation with T in C and p in mm Hg has coefficients for water given by

0 to 60 C: A= 8.10765 B=1750.286 C=235.000

60 to 150 C : A=7.96681 B=1668.210 C= 228.000

At the specified temperature 92 C, the Antoine equation gives a vapor pressure p*=567.09 mm Hg, and at a temperature 21 C, the vapor pressure is p*=18.65 mm Hg.
What is the molal saturation of the moist entering air?

What is the molal saturation of the exiting air at 21 C


If the moist entering air contains 33.39 total moles which includes 22.43 moles of dry air; how many g's of water condenses in the cooler?