Q.1. The feed stream containing 25% acetic acid (A) and 75% chloroform (B) by mass is fed to a counter- current extraction system and pure water (C) is used as solvent. At the end of the extraction process, acetic acid is obtained as 5% by mass in raffinate phase. The extract stream is sent to a separator to separate all the water and then the remaining extract contains 85% acetic acid. E1 EN S=EN+1 E. . LL FR RIRI RR RN R1 BAR RN1 Equilibrium data for the ternary acetic acid -chloroform-water system is given in the table. A,% I.Phase B, % 0.3 1 7 C,% 99.7 II. Phase B, % 99.9 92.9 0 C,% 0.1 0.1 1.5 II 74 A,% 0 7 18.5 28 35 III 25 45 50 49 80 IV 15 48 35 26 67 55 Bu V 25 10 a) Obtain the equilibrium line and show tie-lines for the given system. b) Find the number of stages for the given process. c) What is solvent/feed (S/F) ratio for the system