In an acetone-recovery process, a gas stream containing 20 mole % acetone and the remainder nitrogen leaves a chemical plant at 90 c and 1 atm. The stream is cooled at constant pressure in a condenser, enabling some of the acetone vapor to be recovered as a liquid. The nitrogen and uncondensed acetone are discharged to the atmosphere.

b.) Two cooling fluids are available -- cooling tower water @ 20 C and refrigerant @ -35C. For each fluid, calculate the percentage acetone recovery (mol acetone / mol fed)*100, assuming that the condenser temp equals coolant temp.