题目内容
如图所示,两容器用水平细管相连,容器内充有温度为
的同种气体被一小段水银隔成
、
两部分,现使
、
同时升高温度,若
升高到
,
升高到
,已知
,要使水银保持不动,则( )
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241659439731603.jpg)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824165940151299.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824165940416297.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824165940837304.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824165940416297.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824165940837304.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824165940416297.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824165942288527.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824165940837304.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824165943536532.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824165943801558.png)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241659439731603.jpg)
A.![]() | B.![]() |
C.![]() | D.![]() |
B
试题分析:假设水银柱没动,两边气体都是等容 变化:
左边A:P T 温度升高后P' T'=T+△TA
等容变化:P/T=P'/(T+△TA)…(1)
右边B : P T 温度升高后P' T'=T+△TB
等容变化:P/T=P'/(T+△TB)…(2)
由上二式得△TA=△TB
点评:本题考查了理想气体状态方程的运用,常见的等温等压等容等变化,其实都可以用克拉伯龙方程概括。
![](http://thumb2018.1010pic.com/images/loading.gif)
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