What is the change in average specific kjkg enthalpy of, Ask an Expert

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At 10 bar and 179.9 C, these are the properties of liquid water (vapor water): molar volume of 0.001127 (0.1943) m^3/kg, internal energy of 761.5 (2581.9) kJ/kg, and enthalpy of 762.6 (2776.2) kJ/kg. At 5 bar and 151.8 C, these are the properties of liquid water (vapor water): molar volume of 0.001093 (0.375) m^3/kg, internal energy of 639.6 (2560.2) kJ/kg, and enthalpy of 640.1 (2747.5) kJ/kg. What is the change in average specific (kJ/kg) enthalpy of this system if the quality increases by 0.71 at a constant pressure of 10 bar?

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