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Two streams flow into a 500 -gallon tank. The first stream is 10.0 wt% ethanol and 90.0% hexane (the mixture density, 1, is 0.68g/cm3) and
Two streams flow into a 500 -gallon tank. The first stream is 10.0 wt\% ethanol and 90.0% hexane (the mixture density, 1, is 0.68g/cm3) and the second is 90.0wt% ethanol, 10.0% hexane (2=0.78g/cm3). After the tank has been filled, which takes 22min, an analysis of its contents determines that the mixture is 60.0wt% ethanol, 40.0% hexane. You wish to estimate the density of the final mixture and the mass and volumetric flow rates of the two feed streams. (a) Draw and label a flowchart of the mixing process and do the degree-of-freedom analysis. (5 marks) (b) Perform the calculations and state what you assumed. (10 marks)
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