向某密闭容器中充入1molCO和2molH
2O(g),发生反应:CO+H
2O (g)
![](https://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmrow%3E%3Cmunderover%3E%3Cmo%3E%E2%87%8C%3C%2Fmo%3E%3Cmrow%3E%3Cmi%3E%E9%AB%98%3C%2Fmi%3E%3Cmi%3E%E6%B8%A9%3C%2Fmi%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmi%3E%E5%82%AC%3C%2Fmi%3E%3Cmi%3E%E5%8C%96%3C%2Fmi%3E%3Cmi%3E%E5%89%82%3C%2Fmi%3E%3C%2Fmrow%3E%3C%2Fmunderover%3E%3C%2Fmrow%3E%3C%2Fmath%3E)
CO
2+H
2。当反应达到平衡时,CO的体积分数为
x。若维持容器的体积和温度不变,起始物质按下列四种配比充入该容器中,达到平衡时CO的体积分数大于
x的是( )
- A、0.5molCO+2molH2O(g)+1molCO2+1molH2
- B、1molCO+1molH2O(g)+1molCO2+1molH2.
- C、0.5molCO+1.5molH2O(g)+0.4molCO2+0.4molH2
- D、0.5molCO+1.5molH2O(g)+0.5molCO2+0.5molH2