Questions on Knowledge (Technology) in Petrochemical and Natural Gas Chemical Engineering, April 1, 2010
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We welcome everyone to actively participate in the learning and discussion of professional basic knowledge in the petrochemical technology exchange area! At the same time, I hope other moderators will also participate in this activity, taking turns to come up with questions and discuss various sets of devices! Let’s work together to promote the development of the petrochemical technology exchange zone! The maximum score for this activity is 20 Wealth points. Friendly votes and repeated votes are not allowed; please be careful when posting, as such posts will not be counted as valid scores! To prevent the answers of some members from affecting others, members are asked to hide their own posts while answering questions. Thank you for your cooperation. For specific hiding methods, see: http://bbs.hcbbs.com/viewthread.php?tid=492556&highlight=%D2%FE%B2%D8 True or False question: 1. Catalysts do not affect chemical equilibrium. ( ) 2. 2: All metals possess electrical conductivity. ( ) 3. 3: Gases can be liquefied only below their critical temperature. ( ) Answer: 1V 2V 3V 2
1. 1: Catalysts do not affect chemical equilibrium. ( True ) 2. 2: All metals are conductive. (No, antimony is a semiconductor; it is a poor conductor.) 3. Gases can be liquefied only below their critical temperature. ( Right )
1: Catalysts do not affect chemical equilibrium. ( True ) 2: All metals are conductive. ( Wrong ) 3: Gases can only be liquefied below their critical temperature. ( Right )
1V 2V 3V 1# Front-line employees
1st. Right 2nd. Wrong 3rd. Wrong
Right or wrong 1# Front-line employees