# .Verizon89%5:33 PMDone2. A liquid system consisting of 5 % mole ethanol and the restbeing water is subjected to distillation at 1 atm (101.325kPa). Using the following diagram determine:composition of the vapor phase.subsequently the resulting liquid is subjected to distillation,a) The temperature at which this solution will boil and theb) If the vapor from part a) is condensed completely andwhat would be the composition of the resulting vapor?Data taken from Dortmund Data BankVapor-Liquid EquilibriumMixture of Ethanol and Water374372370368366364: 362 | |:P-101.325 kPa358356-1---.354 *AzeotropicPoint ...γ.3500.1 0.2 0.3 0.4 0.5 0.6 0708 0.9Mole Fraction of Ethanol [mol/mol]PureWaterEthanolIndicate in the diagram the temperatures and compositions forpart a) and b)Open WithPrint

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Step 1

Part (a)

At constant pressure, the temperature at which the liquid mixture boils is determined as shown below.

For 5% ethanol mole fraction, that is, xethanol = 0.05, draw a vertical line till point A. This is the temperature at which first bubble of the vapor appears and is the boiling point for 5% ethanol mixture at 1 atm. The temperature is, T= 363 K.

Step 2

The composition of the vapor phase at this point is estimated from the given figure by drawing a horizontal line from point A to point B at this temperature.

The composition corresponding to this point B is given by point C.

yethanol = 0.34

ywater = 0.66

Step 3

Part (b)

The vapor which is condensed, follows the path as shown in the figure below.

From point B, the vapor is condensed to point D. at this point liquid mixture having composition 0.34 mole fraction of e...

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