Q
As the reflux ratio in a distillation column is increased from the minimum, the______________________?
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A
A. Slope of the operating line in stripping section decreases
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B
B. Number of plates decreases very slowly first and then more and more rapidly
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C
C. Total cost first decreases and then increases
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D
D. Liquid flow increases while the vapor flow decreases for a system
Correct Answer:
C. C. Total cost first decreases and then increases
