Question: An insulated, vertical piston-cylinder device initially contains 10 kg of water, 6 kg of which is in the vapor phase. The mass of the

An insulated, vertical piston-cylinder device initially contains 10 kg of water, 6

An insulated, vertical piston-cylinder device initially contains 10 kg of water, 6 kg of which is in the vapor phase. The mass of the piston maintains a constant pressure of 200 kPa inside the cylinder. Now steam at 0.5 MPa and 350C is allowed to enter the cylinder from a supply line until 80% of initial liquid mass in the cylinder has vaporized. Determine the initial and final temperatures in the cylinder as well as the mass of the steam that has entered. (P= 200 kPa) m = 10 kg H,0 P= 0.5 MPa T= 350C

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