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Think of the piston-cylinder system. Initially, it is filled with pressure of 8 atmosphere, water of...

Think of the piston-cylinder system. Initially, it is filled with pressure of 8 atmosphere, water of 0.1 m3 and steam of 0.9 m3. The piston moved freely and heat was transferred to expand, resulting in a final temperature of 350oC.
(1) Initial temperature (2) Total mass of H2O (3) Final volume (4) Marked on the P-v lead

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