Determine the specific volume of superheated water vapor at 15MPa and 350oC, using a) the ideal gas equation; b) the generalized compressibility chart; and c) the property table. 2. A 2 m3 tank containing nitrogen at 25oC and 500kPa is connected through a valve to another tank containing 3kg of nitrogen at 35oC and 200kPa. Now the valve is opened and the entire system is allowed to reach equilibrium at temperature of 20oC. Determine the volume of the second tank and the final equilibrium pressure. 3. A rigid tank contains an ideal gas at the absolute pressure of 200kPa and 227oC. The gas is cooled until the gage pressure reads 50kPa. If the atmospheric pressure is 100kPa, determine the final temperature of the gas. 4. Using the property tables (A-11, A-12, and A-13), find the properties of R-134a at the given conditions. T (oC) P (kPa) v (m3/kg) x phase - 30 Sat-L 800 Sat-V 10 0.8 Sat-mix 120 0.3 0 100 -20 450 10 0.049403 500 0.0008059 1000 0.01 5. ) Three kilograms of water in a container have a pressure of 100 kPa and temperature of 250°C. What is the volume of this container? 6. ) Two kilograms of water fills a 0.1 m3 rigid tank (the volume will not change) at an initial pressure of 2MPa. The container is then cooled to 40oC. Determine the initial temperature and final pressure. 7. Ten kilograms of water at saturated liquid phase fills in a piston-cylinder device (volume can change) at 50oC. The device is now heated until all the water transforms into saturated vapor phase at 100oC. Determine 1) the pressure and specific volume at the initial state; 2) the pressure and specific volume the final state; and 3) the total volume change.