试题详情
已知反应①:CO(g)+CuO(s)⇌CO
2(g)+Cu(s)和反应②:H
2(g)+CuO(s)⇌Cu(s)+H
2O(g)在相同温度下的平衡常数分别为K
1和K
2 , 该温度下反应③:CO(g)+H
2O(g)⇌CO
2(g)+H
2(g)的平衡常数为K.则下列说法正确的是( )
- A、反应①的平衡常数K1=
![](https://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmrow%3E%3Cmfrac%3E%3Cmrow%3E%3Cmi%3Ec%3C%2Fmi%3E%3Cmrow%3E%3Cmo%3E%28%3C%2Fmo%3E%3Cmrow%3E%3Cmi%3EC%3C%2Fmi%3E%3Cmsub%3E%3Cmi%3EO%3C%2Fmi%3E%3Cmn%3E2%3C%2Fmn%3E%3C%2Fmsub%3E%3C%2Fmrow%3E%3Cmo%3E%29%3C%2Fmo%3E%3C%2Fmrow%3E%3Cmo%3E%E2%8B%85%3C%2Fmo%3E%3Cmi%3Ec%3C%2Fmi%3E%3Cmrow%3E%3Cmo%3E%28%3C%2Fmo%3E%3Cmrow%3E%3Cmi%3EC%3C%2Fmi%3E%3Cmi%3Eu%3C%2Fmi%3E%3C%2Fmrow%3E%3Cmo%3E%29%3C%2Fmo%3E%3C%2Fmrow%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmi%3Ec%3C%2Fmi%3E%3Cmrow%3E%3Cmo%3E%28%3C%2Fmo%3E%3Cmrow%3E%3Cmi%3EC%3C%2Fmi%3E%3Cmi%3EO%3C%2Fmi%3E%3C%2Fmrow%3E%3Cmo%3E%29%3C%2Fmo%3E%3C%2Fmrow%3E%3Cmo%3E%E2%8B%85%3C%2Fmo%3E%3Cmi%3Ec%3C%2Fmi%3E%3Cmrow%3E%3Cmo%3E%28%3C%2Fmo%3E%3Cmrow%3E%3Cmi%3EC%3C%2Fmi%3E%3Cmi%3Eu%3C%2Fmi%3E%3Cmi%3EO%3C%2Fmi%3E%3C%2Fmrow%3E%3Cmo%3E%29%3C%2Fmo%3E%3C%2Fmrow%3E%3C%2Fmrow%3E%3C%2Fmfrac%3E%3C%2Fmrow%3E%3C%2Fmath%3E)
- B、反应③的平衡常数K=
![](https://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmrow%3E%3Cmfrac%3E%3Cmrow%3E%3Cmsub%3E%3Cmi%3EK%3C%2Fmi%3E%3Cmn%3E1%3C%2Fmn%3E%3C%2Fmsub%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmsub%3E%3Cmi%3EK%3C%2Fmi%3E%3Cmn%3E2%3C%2Fmn%3E%3C%2Fmsub%3E%3C%2Fmrow%3E%3C%2Fmfrac%3E%3C%2Fmrow%3E%3C%2Fmath%3E)
- C、对于反应③,恒容时,若温度升高,H2的浓度减小,则该反应的焓变为正值
- D、对于反应②,恒温恒容时,若加入CuO,平衡向正向移动,H2的浓度减小
知识点
参考答案