AiR is to be compreesd reversibly from an initial condition : of 1 atm and 60(*f) to a final state of 5 atm and 60(*f) : by three different processes: : (a)heating at contant volume followed by cooling at constant : pressure. : (b)isothermal compression : (c)adiabatic compression followed by cooling at constant volume : Air may be considered as ideal gas with Cv=5 and Cp=7(btu)/(lb moa)(*f) : ,the initial volume=379ft^3 .the final volume=75.8ft^3 : 计算(1)the work required : (2)the heat transferred : (3)the change in the internal energy of the gas : (4)the change in the enthalpy of the gas : fr the three processes 请问 路径图如何画... 想了蛮久了... 我只划出两种...可是解起来怪怪的 可以请高手话给我看一下吗... 谢谢 --

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