At 10 bar and 179. 9 C. these are the properties of liquid water (vapor water):

Question

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) ma3/kg. internal energy of 639. 6 (2560. 2) kJ/kg. and enthalpy of 640. 1 (2747. 5) kJ/kg. What is the average specific (kJ/kg) enthalpy of a system where 0. 0307 kg water is contained in a 1 liter container at 179. 9 C Selected answer 762. 6 Correct answer: 1. 090. 6 plusminus 1 Response Quality is a property defined by the following: Zmix = Zliq + q x (Zvap - Zliq) where Z is an intensive property and q is Feedback: quality. What mixture property have you been given to assist? You may have to calculate or use quality for both the initial and final condition

Explanation / Answer

use dq= du + dw we will get the following answ 1090.6 + 1, 1090.6 -1

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