1. A mixture of ethanol (ethyl alcohol, C2H6O) and water contains 70.0% water by mass. Assuming...

1. A mixture of ethanol (ethyl alcohol, C2H6O) and water contains 70.0% water by mass. Assuming volume additivity of the components, estimate the specific gravity of the mixture at 20 oC. What volume (in liters) of this mixture is required to provide 100 mol of ethanol? Molecular weight and density of ethanol are 46.07 and 789g/L, respectively.

2. A gas stream contains 18.0 mole% hexane and the remainder nitrogen. The stream flows to a condenser, where its temperature is reduced and some of the hexane is liquefied. The hexane mole fraction in the gas stream leaving the condenser is 0.0500. Liquid hexane condensate is recovered at a rate of 1.5 L/min.

a) Draw the flow chart of the given process and label all the know variables.

b) How many unknown variables you need to solve to specify the molar flow rate of the gas stream leaving the condenser?

c) How many independent balance equations can you set up?

d) Is there any other values you may want to find from other resources? If so, please explain what it is and why?

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Expert Solution

Amanda K answered 1 year ago

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