![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5691183413667a82d9b0857618c73438.png)
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(1)若保持环境温度不变,在左管中缓慢注入水银,求当E气柱的长度变为3h时,左管中注入水银的长度H;
(2)若不是在左管中缓慢注入水银,而是将环境的热力学温度缓慢升高到T2=368K,求温度升高后D气柱的长度L。
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/1/354f245c-2da0-4c63-907b-97e08c7fc948.png?resizew=147)
①若保持气体的温度不变,从左侧开口处缓慢地注入25cm长的水银柱,管内的空气柱长为多少?
②为了使空气柱的长度恢复到15cm,且回到原位置,可以向U形管内再注入一些水银,并改变气体的温度,应从哪一侧注入长度为多少的水银柱?气体的温度变为多少?
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/23/608d6a9c-52ed-402a-8566-92311a578a9e.png?resizew=139)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/171102a883b22fe6ca578efc8926f5b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/276509f01529d982ab21e479a4619268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3606c4a853a6a34cb7f33bea81b15a1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8be646cd52d7f2f1714e7542e75810f2.png)
(1)打开阀门,气瓶A中部分气体充入气球B,使得气球B慢慢膨胀(可近似认为内部压强始终等于大气压强),当气瓶A刚要离地时需向B中充入的气体质量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b087eb0b9970f8caece93bbf6b6c451.png)
(2)气瓶刚要离开地面时,气瓶A内封闭的气体压强p2。
4 . 将一个内壁光滑的汽缸开口朝右静置于光滑水平面上,汽缸质量为M=3kg,横截面积为S=20cm2。用一质量为m=2kg的活塞将一定质量的理想气体密封在汽缸内,开始时活塞离汽缸底部的距离为l=40cm,现对汽缸施加一水平向左、大小为F=100N的拉力,如图所示。已知大气压强p0=1.0×105Pa,密封气体的温度、大气压强均保持不变,汽缸足够长,不计空气阻力,施加拉力作用当系统达到稳定状态后。求:
(1)汽缸的加速度大小;
(2)活塞离汽缸底部的距离。
5 . 如图所示,竖直固定的大圆筒由上面的细圆筒和下面的粗圆筒两部分组成,粗圆筒的内径是细筒内径的4倍,细圆筒足够长。粗圆筒中放有A、B两个活塞,活塞A的重力及与筒壁间的摩擦忽略不计。活塞A的上方装有水银,活塞A、B间封有一定质量的空气(可视为理想气体)。初始时,用外力向上托住活塞B使之处于平衡状态,水银上表面与粗筒上端相平,空气柱长,水银深
。现使活塞B缓慢上移,直至有一半质量的水银被推入细圆筒中。假设在整个过程中空气柱的温度不变,大气压强p。相当于
的水银柱产生的压强,求:
(1)细圆筒中水银柱的高度;
(2)封闭气体的压强;
(3)活塞B上移的距离。
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3606c4a853a6a34cb7f33bea81b15a1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77ad77c4857fa359135a9a3811d20b97.png)
(1)罐内温度刚降至环境温度时,封闭气体的压强;
(2)罐内气体温度降为环境温度后,开始往罐内“慢跑气”,一段时间后,封闭气体的压强为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66358af326d8cca9f7a2c3420c8e635.png)
![](https://img.xkw.com/dksih/QBM/2022/6/2/2992849363509248/2993616346423296/STEM/12c39881-20c0-45ff-872f-9acc8a2cef96.png?resizew=194)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cb2bbf61a72256f3d4b37689dd17123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4189a1e8d1c43191691f30f82f192e5e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3606c4a853a6a34cb7f33bea81b15a1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/132e316bc2a89f7f1d5817d122d09875.png)
(1)求预警传感器到容器底部的距离;
(2)在(1)条件下,若外界温度缓慢降低为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfab7208b162c8fa66fc036bd1466c3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfab7208b162c8fa66fc036bd1466c3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9efc18a5bb2e53586331b2a58538a48b.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05f766714cf5714a51b135d960966e32.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ff4d74b5e446002414b9647c4ff7b20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1eebd522c4de12f8255e649d3145d51.png)
(1)储水腔活塞下方气体压强;
(2)储水腔活塞下方气体高度(结果保留两位有效数字).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6170442004c8b768805b458c09ef168a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6967ec3aaf9e7e6a9d90533b8ff61d10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/342b67a5b65b812fe081ce49c8f73d56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf648ca793a1a7b174a3af44da28e672.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b25e0570ac53937ed7be8c3e624a280.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6bc1260c85220c7ebd26100de26bf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7092b2e953e0359983553acc79efa27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe3791ce5b19e83e0633e21854ceccfa.png)
(1)状态B气体的压强
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f918208e279fe6be9305411c423c1800.png)
(2)气体处于状态B时外力大小F;
(3)状态A到B过程外界对气体做的功W。
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/24/c27b0239-9716-49ce-8b0e-8f4e4a5d8dad.png?resizew=237)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48989b07788ace62f6becc5a851d73ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/663a61ad241d5d874c9a9362f0ee917c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee1546fa58be238c2caa78f9ffd78f88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/635ccd929471d564cc9d2d96266b34d1.png)
(1)打开阀门K,使a上部与大气连通,求稳定后细线上的张力
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
(2)接(1)问,系统稳定后缓慢升高封闭气体温度,直到温度变为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b6c5327a046ca52cdc2d4967a9989c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/3/9c09dbe7-0198-4a4e-a14b-c24e39448a17.png?resizew=140)