# In an operating distillation column, the _____ ? with Answer - Chemical Engineering Mcqs | TestPrep

> Solved MCQ: In an operating distillation column, the _____ ? Correct Answer: C. Driving force for the vapor flow is the pressure drop, as the pressure decreases gradually fromthe bottom to the top of the column. Verified answer explanation for FPSC, PPSC, MDCAT, NTS, and CSS competitive exam preparation.

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# In an operating distillation column, the _____ ?

Direct Answer & Quick Reference

The correct option is **C. Driving force for the vapor flow is the pressure drop, as the pressure decreases gradually fromthe bottom to the top of the column**.

A. Vapors and liquids are at their dew point and bubble point respectively

B. Driving force for the liquid flow is its specific weight

C. Driving force for the vapor flow is the pressure drop, as the pressure decreases gradually from

D. Highest temperature is encountered at the top of the column

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Verified Key: C. Driving force for the vapor flow is the pressure drop, as the pressure decreases gradually fromthe bottom to the top of the column
Solved by 5,636+ students

Verified against official examination board answer keys and standard curriculum textbooks.

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