题干

如图所示的实验装置,研究体积不变时的气体压强与温度的关系,当时大气压为H(cm)汞柱.封有一定质量气体的烧瓶,浸在冰水混合物中,U形压强计可动管A和固定管B中的水银面刚好相平.将烧瓶浸入温度为t℃的热水中时B管的水银面将____,这时应将A管____,(以上两空填“上升”或“下降”)使B管中水银面____.记下此时A、B两管中水银面的高度差为h(cm),此状态下瓶中气体的压强为____.

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答案(点此获取答案解析)

下降,上升,回到原来位置,(H+h)cmHg

同类题2

配对阅读。左栏是五个人物想要做的事。右栏是七个节目、地方和服务的简介。请为每个人选择最合适的节目、地方或服务。

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February 2~9    Tel: 98558588

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