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Q#1 GATE CH 2020 MCQ +2 marks -0.66 marks

SO2 from air is absorbed by pure water in a counter current packed column operating at constant pressure.The compositions and the flow rates of the streams are shown in the figure.

In addition, use the following data and assumptions

• Column operates under isothermal conditions

• At the operating temperature of the column, y* = 40x where y* is the mole fraction of SO2 at a mole fraction of x

• Solution is dilute and the operating line is linear

• Negligible amount of water evaporates The number of transfer units (NTU) for this column is

0.5

1.0

1.5

2.0

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Browse Practice Questions by Chapters / Topics in Browse Practice Questions by Chapters / Topics in GATE Chemical Engineering
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