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从热力学上考察温度对化学反应的影响有两个方面,一是温度对平衡移动的影响,一是温度对反应方向的影响。二者既有区别又有联系,而二者都与反应热直接相关。讨论温度对平衡移动的影响所要回答的问题是:在一个反应器中,如果一个化学反应体系已处于平衡态,改变温度时,平衡是向左或向右移动?这个问题可用Van’t Hoff方程
From the thermodynamic view of the impact of temperature on the chemical reaction in two ways, one is the impact of temperature on the balance of movement, one is the temperature on the reaction direction. Both are distinct and related, and both are directly related to the reactionary heat. To discuss the effect of temperature on the equilibrium movement, the questions to be answered are: In a reactor, if a chemical reaction system is in an equilibrium state, the equilibrium is shifted left or right when changing the temperature. This problem can be solved by the Van’t Hoff equation