合成氨原料气中的
![](https://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmtext%3EC%3C%2Fmtext%3E%3Cmtext%3EO%3C%2Fmtext%3E%3C%2Fmath%3E)
可通过水煤气变换反应
![](https://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmtext%3EC%3C%2Fmtext%3E%3Cmtext%3EO%3C%2Fmtext%3E%3Cmn%3E%28%3C%2Fmn%3E%3Cmtext%3Eg%3C%2Fmtext%3E%3Cmn%3E%29%3C%2Fmn%3E%3Cmo%3E%2B%3C%2Fmo%3E%3Cmsub%3E%3Cmrow%3E%3Cmtext%3EH%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmn%3E2%3C%2Fmn%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3Cmtext%3EO%3C%2Fmtext%3E%3Cmn%3E%28%3C%2Fmn%3E%3Cmtext%3Eg%3C%2Fmtext%3E%3Cmn%3E%29%3C%2Fmn%3E%3Cmover%3E%3Cmo%3E%E2%87%8C%3C%2Fmo%3E%3Cmrow%3E%3C%2Fmrow%3E%3C%2Fmover%3E%3Cmtext%3EC%3C%2Fmtext%3E%3Cmsub%3E%3Cmrow%3E%3Cmtext%3EO%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmn%3E2%3C%2Fmn%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3Cmn%3E%28%3C%2Fmn%3E%3Cmtext%3Eg%3C%2Fmtext%3E%3Cmn%3E%29%3C%2Fmn%3E%3Cmo%3E%2B%3C%2Fmo%3E%3Cmsub%3E%3Cmrow%3E%3Cmtext%3EH%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmn%3E2%3C%2Fmn%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3Cmn%3E%28%3C%2Fmn%3E%3Cmtext%3Eg%3C%2Fmtext%3E%3Cmn%3E%29%3C%2Fmn%3E%3C%2Fmath%3E)
除去。某合成氨原料气中
![](https://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmsub%3E%3Cmrow%3E%3Cmtext%3EN%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmn%3E2%3C%2Fmn%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3C%2Fmath%3E)
、
![](https://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmsub%3E%3Cmrow%3E%3Cmtext%3EH%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmn%3E2%3C%2Fmn%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3C%2Fmath%3E)
、
![](https://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmtext%3EC%3C%2Fmtext%3E%3Cmtext%3EO%3C%2Fmtext%3E%3C%2Fmath%3E)
、
![](https://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmtext%3EC%3C%2Fmtext%3E%3Cmsub%3E%3Cmrow%3E%3Cmtext%3EO%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmn%3E2%3C%2Fmn%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3C%2Fmath%3E)
的体积分数分别为20%、50%、25%、5%。一定温度下按不同投料比
![](https://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmrow%3E%3Cmo%3E%5B%3C%2Fmo%3E%3Cmrow%3E%3Cmfrac%3E%3Cmrow%3E%3Cmtext%3En%3C%2Fmtext%3E%3Cmrow%3E%3Cmo%3E%28%3C%2Fmo%3E%3Cmrow%3E%3Cmsub%3E%3Cmrow%3E%3Cmtext%3EH%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmtext%3E2%3C%2Fmtext%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3Cmtext%3EO%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmo%3E%29%3C%2Fmo%3E%3C%2Fmrow%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmtext%3En%3C%2Fmtext%3E%3Cmtext%3E%28%3C%2Fmtext%3E%3Cmtext%3EC%3C%2Fmtext%3E%3Cmtext%3EO%3C%2Fmtext%3E%3Cmtext%3E%29%3C%2Fmtext%3E%3C%2Fmrow%3E%3C%2Fmfrac%3E%3C%2Fmrow%3E%3Cmo%3E%5D%3C%2Fmo%3E%3C%2Fmrow%3E%3C%2Fmath%3E)
通入水蒸气,平衡后混合气体中
![](https://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmtext%3EC%3C%2Fmtext%3E%3Cmtext%3EO%3C%2Fmtext%3E%3C%2Fmath%3E)
的体积分数如下表。
|
|
|
|
投料比 的体积分数/%
温度/℃ | ![](https://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmfrac%3E%3Cmrow%3E%3Cmtext%3En%3C%2Fmtext%3E%3Cmrow%3E%3Cmo%3E%28%3C%2Fmo%3E%3Cmrow%3E%3Cmsub%3E%3Cmrow%3E%3Cmtext%3EH%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmtext%3E2%3C%2Fmtext%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3Cmtext%3EO%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmo%3E%29%3C%2Fmo%3E%3C%2Fmrow%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmtext%3En%3C%2Fmtext%3E%3Cmtext%3E%28%3C%2Fmtext%3E%3Cmtext%3EC%3C%2Fmtext%3E%3Cmtext%3EO%3C%2Fmtext%3E%3Cmtext%3E%29%3C%2Fmtext%3E%3C%2Fmrow%3E%3C%2Fmfrac%3E%3Cmtext%3E%3D%3C%2Fmtext%3E%3Cmtext%3E1%3C%2Fmtext%3E%3C%2Fmath%3E)
| ![](https://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmfrac%3E%3Cmrow%3E%3Cmtext%3En%3C%2Fmtext%3E%3Cmrow%3E%3Cmo%3E%28%3C%2Fmo%3E%3Cmrow%3E%3Cmsub%3E%3Cmrow%3E%3Cmtext%3EH%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmtext%3E2%3C%2Fmtext%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3Cmtext%3EO%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmo%3E%29%3C%2Fmo%3E%3C%2Fmrow%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmtext%3En%3C%2Fmtext%3E%3Cmtext%3E%28%3C%2Fmtext%3E%3Cmtext%3EC%3C%2Fmtext%3E%3Cmtext%3EO%3C%2Fmtext%3E%3Cmtext%3E%29%3C%2Fmtext%3E%3C%2Fmrow%3E%3C%2Fmfrac%3E%3Cmtext%3E%3D%3C%2Fmtext%3E%3Cmtext%3E3%3C%2Fmtext%3E%3C%2Fmath%3E)
| ![](https://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmfrac%3E%3Cmrow%3E%3Cmtext%3En%3C%2Fmtext%3E%3Cmrow%3E%3Cmo%3E%28%3C%2Fmo%3E%3Cmrow%3E%3Cmsub%3E%3Cmrow%3E%3Cmtext%3EH%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmtext%3E2%3C%2Fmtext%3E%3C%2Fmrow%3E%3C%2Fmsub%3E%3Cmtext%3EO%3C%2Fmtext%3E%3C%2Fmrow%3E%3Cmo%3E%29%3C%2Fmo%3E%3C%2Fmrow%3E%3C%2Fmrow%3E%3Cmrow%3E%3Cmtext%3En%3C%2Fmtext%3E%3Cmtext%3E%28%3C%2Fmtext%3E%3Cmtext%3EC%3C%2Fmtext%3E%3Cmtext%3EO%3C%2Fmtext%3E%3Cmtext%3E%29%3C%2Fmtext%3E%3C%2Fmrow%3E%3C%2Fmfrac%3E%3Cmtext%3E%3D%3C%2Fmtext%3E%3Cmtext%3E5%3C%2Fmtext%3E%3C%2Fmath%3E)
|
200 | 1.70 | 0.21 | 0.02 |
250 | 2.73 | 0.30 | 0.06 |
300 | 6.00 | 0.84 | 0.43 |
350 | 7.85 | 1.52 | 0.80 |
下列说法不正确的是( )
- A、从表中数据可知,水煤气变换反应的
![](https://math.21cnjy.com/MathMLToImage?mml=%3Cmath+xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%3E%3Cmtext%3E%CE%94%3C%2Fmtext%3E%3Cmtext%3EH%3C%2Fmtext%3E%3Cmtext%3E%26lt%3B%3C%2Fmtext%3E%3Cmtext%3E0%3C%2Fmtext%3E%3C%2Fmath%3E)
- B、温度相同时,投料比
大,
的转化率高 - C、按
=1通入水蒸气后,反应前
在混合气体中的体积分数为20% - D、根据
=1时数据推算,300℃时水煤气变换反应的平衡常数K为46