(8.2.3)--4.8-3Exampleofnon-polytropicproc.pdf

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1、Example of non-polytropic process)exp(0KVpp20exp()dVVWpKVV)exp(1)exp(0KVKVKpExample:The ideal gas undergoes a thermodynamic process with ,where K is a constant.Solve:(1)The process equation can be written asThe work done isFind：(1)When the volume of the system is doubled according to this process,ho

2、w much work does the system do externally?(2)What is the heat capacity in this process?ppKV0ln1(2)When calculating the heat capacity,the heat absorbed when heating up along the process should be calculated .dQ1ddVpK p dddVQCTp V1dddVQCTpKd1dddVQpCCTKTdd1/pRTVKdddp VV pR TBy differentiating the process equation ,we can getSubstituting it into ,we can get Divided by dT on both sides,thenSubstituting into ,dividing each side by dT,thenProcess heat capacity is ppKV0ln11VRCCKVThanks