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In an operating distillation column, the | |
A. | vapors and liquids are at their dew point and bubble point respectively [Wrong Answer] |
B. | driving force for the liquid flow is its specific weight. [Wrong Answer] |
C. | driving force for the vapor flow is the pressure drop, as the pressure decreases gradually from the bottom to the top of the column. [Correct Answer] |
D. | highest temperature is encountered at the top of the column. [Wrong Answer] |