【Test Your Knowledge】Basic Chemical Engineering Knowledge (170) Please hide your replies

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This post was last edited by wbp on 2009-8-25 at 14:03. In accordance with the forum’s rules, the maximum score for this activity is 15 Wealth points; giving scores based on charm is prohibited. Friendships and duplicate ratings are also 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 mistakes earn a bonus of 2–6 wealth points as an incentive for participation. 1. The apparent power in a sinusoidal AC circuit is equal to the sum of its real power and reactive power. 2. When using thermocouples for temperature measurement, the thermoelectric potential depends only on the temperature being measured. 3 Except for pressure measurement of oxygen, where special pressure gauges are used, ordinary pressure gauges can be employed for the pressure measurement of other gases. 4 The international unit used to indicate the number of microscopic particles is the mole. 5 In terms of water hardness, 1 degree refers to a hardness level in which 1 kg of water contains an amount equivalent to 10 mg of CaO. 6 Catalysts have high activity at the beginning of use; therefore, the operating temperature should be kept at a lower level within the range permitted by the process. 7 The commonly used reactor for gas-solid heterogeneous reactions is a batch reactor. 8 Reducing the raw material consumption is an important measure to improve the efficiency of chemical production. 9 In chemical reactions, the higher the conversion rate of the reactants, the better the reaction outcome. In the catalytic dehydrogenation of ethylbenzene to styrene, a tubular reactor requires a higher ratio of steam to ethylbenzene compared to an adiabatic reactor. 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 170: ХХХ√√√Х√ХХ