在固定体积的密闭容器中进行如下反应：2AB2（g）+B2（g）2AB3（g）。已知反应过程某一时刻AB2、B2、AB3浓度分别为0.2 mol／L、0.1 mol／L、0.2 mol／L，达到平衡时，_刷题宝

题干

在固定体积的密闭容器中进行如下反应：2AB₂（g）+B₂（g）

2AB₃（g）。已知反应过程某一时刻AB₂、B₂、AB₃浓度分别为0.2 mol／L、0.1 mol／L、0.2 mol／L，达到平衡时，浓度可能正确的是

A：AB₂、B₂分别为0.4mol／L、0.2mol／L

B：AB₂为0.25mol／L

C：AB₂、AB₃均为0.15mol/L

D：AB₃为0.4mol/L

上一题下一题 0.0难度选择题更新时间:2012-04-12 08:20:19

答案(点此获取答案解析）

B

同类题1

根据短文内容完成下列各题

Today l would like to tell you about my dream．

My dream is a simple but great one．It is to be a teacher．①我从小就梦想做一名老师!②First of all，it is a pleasure for me to be with children．They make me feel ③ happy and young．Furthermore，teachers play an important part in the development of children．They teach children and show them how to be good．When children grow up，they use the knowledge that they have learned to develop their motherland and make it beautiful. I think teaching is one of the ④ (value) things in the world．

That’s all．Thank you !

同类题2

_________ the whole process for the studies of cancer took more than a year, the technology is moving so fast that it will soon take just weeks．

同类题3

把下面的句子补充完整，并加上合适的标点符号。

①我白天____晚上____

②____不好意思____

③____多么____

④____一边____ 一边____

同类题4

现欲将粗盐提纯，再用制得的精盐配制质量分数一定的氯化钠溶液，下列说法正确的是（）

同类题5

下列说法正确的是( )

小学学科试题库

初中学科试题库

高中学科试题库