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化学平衡移动原理概括了浓度、压强和温度对化学平衡的影响。本文拟从四道选择题的讨论,对化学平衡移动中几个容易混淆的问题谈点粗浅的看法。例一:一化学平衡体系,当改变一个条件后,某一生成物的浓度增大了。该平衡( )移动。 (a)一定没有;(b)向正方向;(c)向逆方向;(d)可能没有。此题易误答为b,其实正确答案应为d。例如:对CO(气)+H_2O(气)=CO_2(气)+H_2(气)平衡体系,其它条件不变时,增大压强,生成物CO_2的浓度增大,但平衡并未
The principle of chemical equilibrium movement summarizes the effects of concentration, pressure, and temperature on chemical equilibrium. This article intends to discuss a few confusing issues in the chemical balance movement from the discussion of four multiple-choice questions. Example 1: A chemical equilibrium system, when changing a condition, the concentration of a product increases. The balance () moves. (a) must not be; (b) go in the positive direction; (c) go in the opposite direction; (d) may not. This question is easily mistaken for b, in fact, the correct answer should be d. For example: For the CO (gas) + H2O (gas) = CO2 (gas) + H2 (gas) equilibrium system, other conditions remain unchanged, increase the pressure, the concentration of the product CO2 increases, but the balance is not