ch19-p076 - 76. We label the various states of the ideal...

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76. We label the various states of the ideal gas as follows: it starts expanding adiabatically from state 1 until it reaches state 2, with V 2 = 4 m 3 ; then continues on to state 3 isothermally, with V 3 = 10 m 3 ; and eventually getting compressed adiabatically to reach state 4, the final state. For the adiabatic process 11 2 2 12 p Vp V γγ →= , for the isothermal process 2 3 p 2 V 2 = p 3 V 3 , and finally for the adiabatic process 33 44 34 p V . These equations yield
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