As the reflux ratio in a distillation column is increased from the minimum, the________?
ATotal cost first decreases and then increases
BSlope of the operating line in stripping section decreases
CNumber of plates decreases very slowly first and then more and more rapidly
DLiquid flow increases while the vapor flow decreases for a system
Correct answer
A. Total cost first decreases and then increases
Explanation
The correct answer is Total cost first decreases and then increases.