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A rigid tank is connected by a valve to a supply line where refrigerant at 1.4 MPa and 100 degrees Celsius flows steadily. The quality of the refrigerant in the tank is 0.7 at the initial phase and is 14 degrees Celsius. The volume of the tank is 0.3 m^3. The valve is opened and refrigerant is allowed to enter the tank until the pressure in the tank is 700 kPa and is all vapor phase. Find 1) the mass of the refrigerant and 2) the heat transfer to surroundings and the final temperature of the tank when the valve is closed.
1. write out the differences betweena close system and open systemgive one example and state what type of system it isb
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