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Mass Transfer

Q1:

The reflux to a distillation column is 100 moles/hr, when the overhead product rate is 50 moles/hr. The reflux ratio is

A 2

B 0.5

C 50

D 150

ANS:A - 2

The reflux ratio is calculated as the ratio of the reflux flow rate to the overhead product flow rate. Using the given values: Reflux ratio = Reflux flow rate / Overhead product flow rate Given:

  • Reflux flow rate = 100 moles/hr
  • Overhead product flow rate = 50 moles/hr
Reflux ratio = 100 moles/hr / 50 moles/hr Reflux ratio = 2 Therefore, the reflux ratio is 2.



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