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Find the specific internal

Problem 1:

Consider water as the substance.

(a) Find the specific internal energy (Btu/lbm) when T = 500F and P = 375 psia

(b) Find the pressure (psia) when T = 500F and v = 0.02024 ft3/lbm

(c) Find the specific volume (ft3/lbm) when T = 500F and h = 1000 Btu/lbm

(d) Locate states (a), (b), and (c) on the P-v and T-v diagrams for water. Label states,

indicate appropriate lines of constant temperature or pressure, and show property values.

and another, how do I go about this one?

Problem 2 :

Answer the following questions. Provide justification.

(a) A rigid vessel of 1 m3 contains 10% liquid water and 90% water vapor by volume at a pressure of 1 bar.

What is the quality of the mixture?

(b) This rigid vessel is heated. Which of the following is(are) the possible phase(s) of the substance after heating?

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