In the production of soybean oil, dried and flaked soybeans are brought into contact with a solvent (often hexane) that extracts the oil and leaves behind the residual solids and a small amount of oil. (a) draw a flowchart of the process, labeling the two feed streams (beans and solvent) and the leaving streams (solids and extract). (b) the soybeans contain 18.5 wt% oil and the remainder insoluble solids, and the hexane is fed at a rate corresponding to 2.0 kg hexane per kg beans. the residual solids leaving the extraction unit contain 35.0 wt% hexane, all of the non-oil solids that entered with the beans, and 1.0% of the oil that entered with the beans. for a feed rate of 1000 kg/h of dried flaked soybeans, calculate the mass flow rates of the extract and residual solids, and the composition of the extract. be sure to show a degree of freedom analysis. (c) the product soybean oil must now be separated from the extract. sketch a flowchart with two units, the extraction unit from parts (a) and (b) and the unit separating soybean oil from hexane. propose a use for the recovered hexane.