5. Typically, distillation columns that separate formic acid and water must operate at elevated pressure, which causes decomposition of the formic acid. Extractive distillation allows for the separation of water and formic acid at atmospheric pressure. In extractive distillation a solvent is added to the distillation column to assist with the separation An aqueous solution of formic acid with 155 mol/s of formic acid (FA) and 75 mols of water (W) is fed to an extractive distillation column. The solvent n-formylmorpholine (NFM) is fed to the distillation column at a molar flow rate 2.5 times greater than the molar flow rate of formic acid. The overhead product contains 1.1% of the FA and none of the NFM. The bottoms product contains 28.2 mol.-% formic acid. A diagram of this process is shown below. Calculate the molar flow rate of NFM fed to the column, and the molar flow rates and mole fractions of all components in the overhead product and bottoms streams. ru YAJ Ya = 40,- 3 Xue Xu Xat 546 n. - Xus Xove 0 X & Xweis Distillation 2 NA = 155 molts FAX n = 75 mol/s n, Yus- 7n, YA Xa - Xoru * = 0.282 ***