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1. A feed stream to a distillation column contains three components (A, B and C). Component. A mass flow rate is 100 kg/s, and the flow rates of components B and Care unknown. The distillate flow rate is 100 kg/s and contains 60 kg/s of component A and 40 kg/s of component B. It has been found that 40% of component A in the feed stream ends up in the bottom stream. The distillate and bottoms flow rates are equal. Perform a degree of freedom analysis (show all unknowns). (4 marks) 2 Distillate=100 ke's m2 -60 kg's 2-40 kg's Solution: Relation 1: 40% of component A in the feed stream ends up in the bottom stream Relation 2: The distillate and bottoms flow rates are equal Feed (kg/s) -100 kg/s MA? Distillation Column Bottom (kg/s) naj-? nasz? ng? 5 unknowns (Feed, ng,1, Bottom, 1.3, 13.3) - 3 independent mass balances - 2 relations DF=0.0