How Does Opening a Valve Affect R-134a Quality and Heat Transfer in a Container?

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Opening the valve on a container of liquid R-134a allows the liquid to flow out, impacting the quality and heat transfer of the remaining refrigerant. The process is isothermal, meaning the temperature remains constant at 24 degrees Celsius while the mass decreases from 5 kg to 0.25 kg. To determine the final quality of the R-134a, vapor dome tables are necessary to analyze the phase behavior of the refrigerant. The final quality is calculated to be 0.506, with a total heat transfer of 22.6 kJ during the process. Understanding these concepts is crucial for solving similar problems in thermodynamics.
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Homework Statement




An air-conditioning system is to be filled from a rigid container that initially contains 5 kg of liquid R-134a at 24 degrees Celsius . The valve connecting this container to the air-conditioning system is now opened until the mass in the container is .25 kg, at which time the valve is closed. During this time, only liquid R-134a flows from the container. Presuming that the process is isothermal while the valve is open, determine the final quality of the R-134a in the container and the total heat transfer. (Answers: 0.506, 22.6 KJ)


If someone could show me how to work this problem, I am having a hard time understanding it.
 
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