In actual operation of a bubble cap distillation tower, the ______________ at the bottom of the tower is more than that at the top of the tower?
Correct answer: D. All A., B. and C.
- A. Molal flow rate of vapour
- B. Vapour molecular weight
- C. Pressure and temperature
- D. All A., B. and C.
Explanation
Pressure and temperature are higher at the tower bottom, while the heavier vapour composition and usually the vapour flow are also greater there in actual operation. Therefore, all three listed quantities can exceed their values at the top.
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