For each of the following cases, determine the specified properties using tables and using IT. Show the states on a sketch of the T-v diagram.

1. Water at 100 psi, u = 500 Btu/lb : T.°F, v.ft³/lbm, h.Btu/lbm.

2. NH3 at 40°F and x = 0.5: P.psi, v.ft³/lbm, u. Btu/lbm.

3. Water at 80 bar, 0.04034 m³/kg : T.°C, u.kJ/kg, h.kJ/kg.

4. Refrigerant 134a at −20 °C, h = 235.31 kJ/kg : P.bar, v.m³/kg and u.kJ/Kg.