题目内容
(2000·全国)已知反应A+3B2C+D在某段时间内以A的浓度变化表示的化学反应速率为
,则此段时间内以C的浓度变化表示的化学反应速率为
[ ]
A.![](http://thumb.1010pic.com/pic7/pages/6206/2F21/0023/dce0f4175f0cfa6d0eb23c6d4b08d2ad/A/Image27508.gif)
![](http://thumb.1010pic.com/pic7/pages/6206/2F21/0023/dce0f4175f0cfa6d0eb23c6d4b08d2ad/A/Image27508.gif)
B.![](http://thumb.1010pic.com/pic7/pages/6206/2F21/0023/dce0f4175f0cfa6d0eb23c6d4b08d2ad/A/Image27507.gif)
![](http://thumb.1010pic.com/pic7/pages/6206/2F21/0023/dce0f4175f0cfa6d0eb23c6d4b08d2ad/A/Image27507.gif)
C.![](http://thumb.1010pic.com/pic7/pages/6206/2F21/0023/dce0f4175f0cfa6d0eb23c6d4b08d2ad/A/Image27509.gif)
![](http://thumb.1010pic.com/pic7/pages/6206/2F21/0023/dce0f4175f0cfa6d0eb23c6d4b08d2ad/A/Image27509.gif)
D.![](http://thumb.1010pic.com/pic7/pages/6206/2F21/0023/dce0f4175f0cfa6d0eb23c6d4b08d2ad/A/Image27510.gif)
![](http://thumb.1010pic.com/pic7/pages/6206/2F21/0023/dce0f4175f0cfa6d0eb23c6d4b08d2ad/A/Image27510.gif)
答案:C
解析:
解析:
解析:从题目中可以看出反应物 A、B和生成物C、D的化学计量数的关系,即![]() ![]() ![]() ![]() |
![](http://thumb2018.1010pic.com/images/loading.gif)
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