i need an answer for question b. thankyou for your help!

4.0 DESCRIPTION As a process engineer of a chemical plant producing styrene (C.H.), you need to make some important decision and conclusion. The styrene (CH) is produced from dehydrogenation reaction of ethylbenzene (C.H.) with the present of catalyst according to the following reaction equation; C.H. (g) - C.H.(g) + H, (g) A fresh feed stream consists of C.H., and steam (HO) at a mole ratio of 1:1 is mixed with a recycle stream and enters a reactor (R). The steam acts as an inert and cleaning compound for the catalyst surface. The production process is designed for 70-80% overall conversion and single-pass conversion of 30-40%. The reactor outlet stream enters a first separator (S1) which produces 2 streams. The first stream consists H, and H.O is discarded for further process, while the second stream consists of C.H. and C.H., enters a second separator (S2). The S2 produces 2 streams, the first stream consists of C.H. and C.H. is collected as product while the second stream consists of 90 mol% C.H. ad the balance C.H. is recycled and mixed with the fresh feed stream in a mixer (M). YOUR TASK 5.0 a) Evaluate material balance of the system by considering the process flow diagram and suitable assumptions within the given range. b) In the above process, the product purification is done through liquid-gas multiphase system where a liquid phase is in equilibrium with a gas phase. Objective of separator 1 (S1) is to separate 2 streams; a gas stream consists of H.H.O and trances of CH and CH. and a liquid stream consists of C.H. and C.H. For the phase separation to occur, suitable pressure and temperature of the mixture should be identified as to fulfill the designed composition for the process. In this case when the gas stream contains 0.5 wt% C.H..0.2 wt% C.H. and the balance H, and HO (consider as non-condensable compounds). determine composition of the liquid phase if pressure of the system (P) is at 1 atm and dew point temperature (T..) of the mixture is at the range of (50-200C. Consider 3 sets of T. Kolej Pengajian Kejurute UNIVERSITI TEKNOLOGI MARA within the given range for the system. From the 3 sets, propose the best T, and give your justification towards objective of the separator