Problem 3:
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.
Answer: (a) 1152.5 Btu/lbm; (b) 1500 psia; (c) Not attached; (d) Not attached
and another, how do I go about this one?
Problem 4:
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?
0.1, 0.9, 0.0055, 0.9945 (possible answers)
(b) This rigid vessel is heated. Which of the following is(are) the possible phase(s) of the
substance after heating?
Saturated liquid-vapor mixture, Saturated liquid , Saturated vapor, Compressed liquid (possible answers)
1 answer
1 answer