题目内容
如图,内横截面积为S的气缸竖直放置,缸内有一可无摩擦滑动的活塞,其质量为m,最初活塞放在缸内壁固定的卡环上,将温度为T0、压强为P0/4、长为L的气体封闭在气缸内.设大气压强P0=2mg/S,现对缸内气体加热,
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241200577791580.gif)
(1)要使活塞刚好离开卡环,气体的温度应升到
多大.
(2)气体温度升到10T0时,缸内气体的长度L1多大.
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/201408241200577791580.gif)
(1)要使活塞刚好离开卡环,气体的温度应升到
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824120057794109.gif)
(2)气体温度升到10T0时,缸内气体的长度L1多大.
(1) 6To (2) 1.67L
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/2014082412005781016365.jpg)
![](http://thumb.1010pic.com/pic2/upload/papers/20140824/20140824120057825321.gif)
![](http://thumb2018.1010pic.com/images/loading.gif)
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