A fresh feed stream flowing at a rate of 100 kg/min consists of the mass fractions 0.4 A, 0.1
B, and 0.5 C and enters an evaporator where the evaporator product stream leaving from the
top of the evaporator contains 0.8 mol fraction A and the balance is B and C. Sixty percent
of the evaporator product stream is recycled and combined with the fresh feed stream. The
evaporator product stream consists of 0.3 mass fractions A and 0.125 mass fractions B, andthe balance is C. Draw and label the process flow sheet and determine the flow rate and
mass fraction of A in the evaporator feed streams.