Reference no: EM13973524
1. Complete the following exercises. In each case locate the state on sketches of the T-v and p-v diagrams.
(a) Four kg of water at 100°C fills a closed container having a volume of 1 m3. If the water at this state is a vapor, determine the pressure, in bar. If the water is a two-phase liquid-vapor mixture, determine the quality.
(b) Ammonia at a pressure of 40 lbf/in.2 has a specific internal energy of 308.75 Btu/lb. Determine the specific volume at the state, in ft3/lb.
2. Using the tables for water, determine the specified property data at the indicated states. In each case, locate the state on sketches of the p-v and T-v diagrams.
(a) At p = 2 MPa, T = 300°C. Find u, in kJ/kg.
(b) At p = 2.5 MPa, T = 200°C. Find u, in kJ/kg.
(c) At T = 170°F, x = 50%. Find u, in Btu/lb.
(d) At p = 100 lbf/in.2, T = 300°F. Find h, in Btu/lb.
(e) At p = 1.5 MPa, v = 0.2095 m3/kg. Find h, in kJ/kg
3. For each of the following cases, determine the specified properties and show the states on a sketch of the T-u diagram.
(a) For Refrigerant 22 at p = 3 bar and v = 0.05 m3/kg, determine T in °C and u in kJ/kg.
(b) For water at T = 200°C and v = 0.2429 m3/kg, determine p in bar and h in kJ/kg.
(c) For ammonia at p = 5 bar and u = 1400 kJ/kg, determine T in °C and v in m3/kg.
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