(a) Vapor concentration of gases entering and leaving = 0.183 and 0.327 respectively
 (b) Moles of acetone evaporated = 0.144 lb moles
 (c) Weight of acetone evaporated per 1000 cu ft of gas entering = 17.5 lb
 (d) Volume of gas leaving per 1000 cu ft of gas entering = 1104 cu ft