【Daily Question】Chemical Engineering Principles 133: Theoretical Extraction (August 7)
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The Chemical Engineering Theory section is launching the \"One Question per Day\" campaign starting today, aimed at helping everyone reinforce their basic knowledge of chemical engineering. Subsequent series will include those on \"Principles of Chemical Engineering\", \"Mass Transfer and Separation\", \"Thermodynamics in Chemical Engineering\", and \"Chemical Process Engineering\". We hope for your active support! Answers to the questions in the \"One Question per Day\" campaign can be viewed directly by replying to the post, and the topic will be closed after 1 day ! Participation earns 2 wealth points, with an additional 3 wealth points for correct answers~~~ Multiple-choice question: When a pure solvent S is used for single-stage theoretical extraction of a mixture of A and B, and the amount of S used is increased while keeping the feed rate F and composition constant, what should be the composition of the extract obtained? A. Increase ； B. Reduce ； C. Unchanged ； D. Not necessarily ； D
The composition of the obtained extract should (B, decrease).
D. Not necessarily； . . . . . . . .
D, not necessarily--------------------
When performing single-stage theoretical extraction of the A and B mixture using pure solvent S, as the amount of S increases, while keeping the feed rate F and composition constant, the composition of the extract obtained should (D, not necessarily； ). A. Increase ； B. Reduce ； C. Unchanged ； D. Not necessarily ；
B............................................
Answer: D, not necessarily； :D
When a single-stage theoretical extraction is performed on the A and B mixture using pure solvent S, as the amount of S increases, while keeping the feed rate F and composition constant, the composition of the extract obtained should be (D). A. Increase ； B. Reduce ； C. Unchanged ； D. Not necessarily ；
When a single-stage theoretical extraction is performed on the A and B mixture using pure solvent S, as the amount of S increases, while keeping the feed rate F and composition constant, the composition of the extract obtained should be (C). A. Increase ； B. Reduce ； C. Unchanged ； D. Not necessarily ；
Answer: D, not necessarily； :hug::hug::hug: