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true or false question: (Answer format: True True True False) 1. When other conditions remain unchanged, increasing the temperature will shift the reaction equilibrium toward the endothermic direction. 2. When other conditions remain unchanged, the total pressure of the pressurized gas reaction and the equilibrium will move in the direction in which the number of gas molecules decreases. 3. Percentage is commonly used in industry to express the water content of water-containing gas. 4. In chemical production, when production is normal, the flow of fluid in the pipeline is mostly stagnant flow. 5. When liquid flows in pipes, energy loss occurs due to the viscosity of the liquid. Note: 1) In this activity, each question will be worth 2 pieces of wealth, with a full score of 10 pieces of wealth. In order to encourage members to answer the questions carefully, those who get full marks will be rewarded with 1 charm point by explaining the reasons for the mistakes they think are wrong. In principle, those who do not hide or answer questions according to the format will not be graded. Hidden method: http://bbs.hcbbs.com/viewthread.php?tid=492556&highight=%D2%FE%B2%D8 2) If you answer questions from the same IP address, only the first answer is valid. In addition, please be careful when posting, editing is invalid (except for replies on the 1st floor). 3) In order to achieve the purpose of reviewing the past and learning new things, the reference answers will be announced the next day. In addition, if you have any objection to the reference answer to a certain question, you can post a thread for in-depth discussion. 4) The total number of periods of this event is tentatively set at 50.
True True False True 4. In chemical production, when production is normal, the flow of fluid in the pipeline is mostly stable flow.
True True False False 4. In industry, it is generally turbulent flow. 5. In addition to viscosity loss, energy loss also includes collision resistance loss between the fluid and pipe fittings.
This post was last edited by JRP5160 on 2010-1-3 12:59 True True False False 4. Normal production should be laminar flow 5. In addition to viscosity, there should also be local structural losses (such as elbows)