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Separation Process Engineering: Includes Mass Transfer Analysis, Third Edition by Phillip C. Wankat

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A. Discussion Problems

A1. The Fenske equation:

a. Is valid only for binary systems.

b. Was derived for minimum reflux.

c. Requires constant molal overflow (CMO).

d. Requires constant K values.

e. All of the above.

f. None of the above.

A2. If you want to use an average relative volatility, how do you calculate it for the Underwood equation?

A3. Develop your key relations chart for this chapter.

A4. In multicomponent distillation the Fenske equation can be used to:

a. Estimate the fractional recoveries of the nonkeys at total reflux.

b. Calculate the number of equilibrium contacts at minimum reflux.

c. Estimate the average K value of the light key at total reflux.

d. All of the above.

e. None of the above.

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