- A stream consisting 3 species (A, B and C) were subjected to a series of separation unit to obtain high purity of product. - The feed stream enters a flash column (C-101) where half of species A is recovered as top product. No species B and C is observed in this top product. - The bottom product of C101 is then fed to a distillation column (C-102). In the bottom product of C102, species A is not present in the bottom stream. The top product of C102 is combined with the top product of C101. A small amount of species B and C are still found in the combined stream. - The bottom stream of C-102 is fed to another distillation column (C-103). The top product of C103 majorly species B with a small amount of species C, while the bottom product of C-103 only consists of species C. Based on the process description: a. Draw and label a complete block diagram with assigning suitable stream numbers, vessel name and label the unknowns for the compositions in each stream. [5 marks] b. Provide 2 equations for each unit of C-101, C-102 and C-103 which can be used to solve the material balance