题目:
如图所示,圆柱形气缸开口向上竖直放置在水平面上,气缸足够长,内截曲积为S,大气压强为P0,一厚度不计、质量为的活塞封住一定量的理想气体,温度为T0时缸内气体体积为V0 ,先在活塞上缓慢放上质量为3m的砂子,然后将缸内气体温度缓慢升高到2T0,求:
①最后缸内气体的体积;
②在右图中做出缸内气体状态变化的P-V图象
答案:
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