【Daily Question】Chemical Engineering Principles 381: Generator Cooling Water (May 20)

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The last edit to this post was made by Zaihui Kangqiao on 2016-6-27 at 14:11. The Chemical Engineering Theory section is now launching a \"One Question per Day\" activity 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 questions in the \"One Question per Day\" activity can be viewed directly, and 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 awarded for correct answers~~~ Short answer: What is the concentration of which substance in the generator’s cooling water that serves as an important indicator to assess the degree of corrosion? Copper ion content