【Daily Question】Chemical Engineering Principles 585: Distillation Column (July 14)

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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 in 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 \"One Question per Day\" questions can be viewed directly; the thread will be closed after 1 day! ! To encourage continued participation from everyone this year! Participation earns 3 wealth points, with an additional 4 wealth points for correct answers~~~ Multiple-choice question: A distillation column has N1 theoretical plates in the distillation section and N2 theoretical plates in the stripping section. Due to equipment upgrades, the number of theoretical plates in the stripping section increases, while the number in the distillation section remains unchanged. All other parameters such as F, x_f, q, R, and V remain constant. Then: ( ) A. x_w decreases, x_D increases ； B. xw? decreases, xD? remains unchanged ； C. xw? decreases, xD? decreases ； D. xw? decreases; the change in xD? depends on the specific circumstances. A