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Question: i need help with getting the last two answers explanation...

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I need help with getting the last two answers, explanation would be good too thanks.

A gas contained within a piston-cylinder assembly undergoes three processes in series: Process 1-2: Constant volume from p1 1 bar, V16 m3 to state 2, where P2 2 bar. Process 2-3: Compression to V3 2.5 m3, during which the pressure-volume relationship is pv -constant. Process 3-4: Constant pressure to state 4, where V41 m3 Determine the work for each process, in k Process 1-2: W12 = 0 kJ Process 2-3 W23 109.3929 kJ Process 3-4: W34 360 kJ Click if you would like to Show Work for this question: Open Show Work

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