【Test Your Knowledge】Basic Chemical Engineering Knowledge (164) Please hide your replies

Thread Content

This post was last edited by wbp on 2009-8-19 at 18:31. In accordance with the forum’s guidelines, the maximum score for this activity is 15 Wealth points; giving scores based on charm is prohibited. At the same time, friendship requests and duplicate ratings are declined. To encourage active participation from members, the top 5 correct answers receive a full score; for the remaining answers, 10–15 wealth points are awarded for every correct answer, while 8–12 wealth points are given for each incorrect answer. 2 mistakes result in a loss of 6–10 wealth points; the remaining points are increased by 2–6 wealth points as an incentive for participation. Correct or incorrect: The four stages of the PDCA cycle in quality management refer to planning, execution, inspection, and conclusion. 2 The target audience for safety education in chemical production is technical personnel and frontline operators. 3 The COD value of wastewater is definitely higher than the BOD value. 4 Filter-type gas masks; the canisters for protecting against acidic gases are marked in brown. 5 As the temperature rises, all reactions involving T accelerate, thereby increasing production capacity. 6 To remove heavy metal ions from water, the ozone oxidation method shows good efficiency in removing chromium, lead, and mercury. 7 Under certain conditions, when gas and liquid are in equilibrium, the amount of solute that a certain quantity of solvent can dissolve is called solubility. 8 The saturated vapor pressure is independent of the amount of liquid and depends on the properties of the liquid and the temperature. 9 Substances with a solubility between 1 and 10 g are called soluble substances. 10 The degree to which the various measured values agree with each other is the accuracy. All members now have the permission to use hidden replies; please cooperate actively. Starting from this issue, no scoring will be given in principle without hiding it. Thank you all! Also, be careful when posting – edits are invalid! To hide the method, click here: Hide method – Answer for issue 164: TFFFFFFTTf