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The insulated vessel shown below has two compartments separated by a membrane. On one side is...

The insulated vessel shown below has two compartments separated by a membrane. On one side is 1 kg of steam at 400°C and 200 bar. The other side is evacuated. The membrane ruptures, filling the entire volume. The final pressure is 100 bar. Determine the entropy change for this process. (In each state of your calculations, state your reasoning clearly.)

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