Question 1 [12 marks] Distillation is probably the most widely used separation process in chemical and allied industries; its application ranging from the rectification of alcohol, which has been practiced since antiquity, to the fractionation of crude oil. Assume that you are a newly employed Chemical Engineer who has been requested by your Process Manager to design a multicomponent distillation. (a) State the number of fractionators that are required to separate five components (b) Define the following terms with respect to multicomponent distillation systems: fractional recovery, key components, non-key components, distributed components and undistributed components (c) The separation of liquid mixtures having components which are close-boiling is difficult since relative volatility is near unit or unit. State and define three distillation strategies that can be used for separating such mixtures