A piston/cylinder has a water volume separated in V_A = 0.2 m³ and V_B = 0.3 m³ by a stiff membrane (Fig. P3.211). The initial state in A is 1000 kPa, x = 0.75 and in B it is 1600 kPa and 250◦C. Now the membrane ruptures and the water comes to a uniform state at 200◦C. What is the final pressure? Find the work and the heat transfer in the process.

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Po mp cb A:H,0 B:H20 FIGURE P3.211