One mole of an ideal rigid diatomic gas is initially in a state A at atmospheric pressure and temperature TA = 27 ºC.It is first heated isochorically to a state B where the pressure is twice that in state A.The gas then undergoes an isothermal e

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OnemoleofanidealrigiddiatomicgasisinitiallyinastateAatatmosphericpressureandtemperatureTA=27ºC.

One mole of an ideal rigid diatomic gas is initially in a state A at atmospheric pressure and temperature TA = 27 ºC.It is first heated isochorically to a state B where the pressure is twice that in state A.The gas then undergoes an isothermal e
One mole of an ideal rigid diatomic gas is initially in a state A at atmospheric pressure and temperature TA = 27 ºC.It is first heated isochorically to a state B where the pressure is twice that in state A.The gas then undergoes an isothermal expansion to a state C,where the pressure is again atmospheric.Next the gas is cooled isobarically to state A.(a) Carefully sketch a P-V diagram for the cycle.(b) Calculate the change in internal energy of the gas,the heat flow into the gas and the work done by the gas in each of the three processes A → B,B → C and C → A.(c) What is the thermal efficiency of the cycle?

回1楼，这个是物化问题，大学知识
楼主，具体计算你自己解决吧，有个单词不认识，不知道是什么过程
(C)是求热效率
用对环境所作的功处以热就行
η=-W/Q
或者说是用你画的图，A-B-C-D所围的面积，除以B-C与横轴所围的面积
isochorically恒容，isothermal绝热
顺便请教一下isochorically啥意思啊，看到后帮...

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去翻译。

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这么难的题！
这么难翻译！
大学的题吧！
部分翻译：理想的一摩尔刚性双原子气体最初是在状态A：在大气压和温度TA = 27 .C 。首先......被加热......压力......状态A ......状态B......然后进行等温扩展......状态C......压力再是大气压......其次......冷却......状态A 。
问题:(a) 仔细地速写一张P-V 周期图。
(b) 计算变化在气体的内部能量上, 热流入气体和工作由气体完成在每个中三个过程A → B, B → C 和C → A.
(c) 什么是周期的热量效率?
以上翻译可能不对。

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楼上用机器翻译的吧，很多专业词汇翻译的不准确，
就是大学物理化学问题，
顶qdbxj，热效率就是围的面积/总面积，
公式早忘了...

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