![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8600609e46e22fe18b4273dd089e7036.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8141d00b74eb4c50bf861e6ff0edf137.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b91ebf976d95ce3e8fc970c4784a145d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/164932c352061abf01e7e3513b08229d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f881cb9071ca8fea7cef4ab8d4865589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf9f50605db5d5f8f3a01ee8e474a112.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
(1)求开始
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8600609e46e22fe18b4273dd089e7036.png)
(2)求当汽缸与活塞共同沿斜面向上以
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a511275636a36c69b1e58c68979d8ba4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
(3)从静止状态到(2)问中状态的过程中,活塞相对汽缸底部运动的距离。
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/21/05d9e21c-e9b1-4ae5-90bb-4dbd5543e5c4.png?resizew=295)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eb4f5f608f3879a545e9e95858a8d26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c76cd04b040630ac3e865281dd9268f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d511957f4b320c19670133e790d71b43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5891827c4201a041ea199853025aad52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3606c4a853a6a34cb7f33bea81b15a1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(1)堆放细沙的质量;
(2)温度降为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5891827c4201a041ea199853025aad52.png)
(3)降温过程气体内能的变化量。
②实验中通过活塞所在刻度读取了多组体积V及对应压强p,为了在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
A.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3403d95ca883357ef3153b67fa512118.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17ed9742fdb5daec44e3f43542672d85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d5dfc16ca823e769d118636d8fffdb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/feaa221214c3ce381ed7b3daee9ee6b7.png)
③选择合适的坐标后,该同学通过描点作图,得到直线的函数图像如图所示,忽略传感器和注射器连接处的软管容积,则这颗冰糖的体积为
(1)求气体状态a的体积V以及状态c的温度T;
(2)若b到c过程中气体内能改变了2×104J,求该过程气体放出的热量Q。
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33978b78b0ebd8658d953a3de88c7823.png)
(1)不规则物体的体积
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21c280c5f4ae649c3bb1f720633c886c.png)
(2)该过程中缸内气体向外界放出的热量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
6 . 如图1所示,一导热性能良好、内壁光滑的汽缸水平放置,横截面积、质量
、厚度不计的活塞与汽缸底部之间封闭了一部分理想气体,此时活塞与汽缸底部之间的距离
,在活塞的右侧
处有一对与汽缸固定连接的卡环,气体的温度
,大气压强
。现将汽缸竖直放置,如图2所示,取
。
(1)竖直后,求活塞与汽缸底部之间的距离;
(2)竖直后,求加热到时气体的压强
;
(3)若汽缸竖直放置时气体压强为,加热到
时的压强为
,活塞移动距离为
,气体总共吸收热量为
,求气体内能增量
(选用以下物理量表示:
、
、
、
、
、
)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21c280c5f4ae649c3bb1f720633c886c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3606c4a853a6a34cb7f33bea81b15a1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ae86ea239f6007d2c67156ef550ecb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bee672753325daec0982b0ece8f4e6ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/635ccd929471d564cc9d2d96266b34d1.png)
(1)开始时右活塞上方气体压强
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ed741801b68c9de9b02e97b1e7f76e3.png)
(2)接触恒温热源后且未打开K之前,左活塞上升的高度H;
(3)打开阀门K后,重新达到平衡时左气缸中活塞上方气体的体积
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0158ea77e3cb9e098f5b7964fb6a41a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/560651e88589ba73732bf8222f50acfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa8de5e585eb4cb76023c432759ce468.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f9dfe237781089c90d2508752c22d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a63c6ffc6a821b24dd0509a418e92d74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/945d5dedf7750221391d4bdfae1bb2bc.png)
(1)判断气体从状态A到状态B的过程是吸热还是放热,并说明理由;
(2)气体处于状态B时的温度
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b3961f5681dca061c2d5eccdfa1d6b7.png)
(3)气体处于状态C时的长度
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fce9427c9b17e4d3cda0c3ff3e2e14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80feee1aa13eb5624c62a0e25b5d9919.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a6c9e497868445c9efbcdf120dc376f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd6a64b062371e2c934ec968bbaf3e23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00f3a8d0bbc26d157241d953fac71417.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca46ddc883dd1c9b06f82bb1c91fa8e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f89e5470cb17cecde44c193710587c8.png)
(1)求此时气缸内空气的压强;
(2)求此时外力
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
(3)在气缸缓慢向右运动的过程中,请判断气体是吸热还是放热?并比较外界对气缸内气体所做的功
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/15/c0536bb7-3eec-4398-b540-38e5aa6e86d9.png?resizew=230)
10 . 小明同学为测定某高原的大气压强进行以下实验。将总长L=24cm的玻璃管开口端向下竖直插入装有水银的烧杯中,并使玻璃管内外的液面相平,如图1所示,测得玻璃管内封闭空气的长度。,然后将玻璃管缓慢地竖直上提,移出烧杯,如图2所示,测得玻璃管内水银柱的长度
,已知一个标准大气压等于76cm水银柱高,记作
,室内温度
。
(1)玻璃管缓慢上提过程中,封闭气体(选填“吸收”或“释放”)热量;
(2)求高原的大气压强为多少厘米的水银柱高?
(3)若将玻璃管转置开口向上,并加热使水银柱刚好移到管口,如图3所示,求此时管内气体的温度为多少?若要将水银全部溢出,求需要将管内气体加热到多少温度?