needed, please use the unit conversion factors available in your textbook as well as Tables B.1, B.2, and B.3 in your textbook. Problem 1: Consider a 1.00-m-high vertical piston-cylinder holding 0.0345kg of air at T=2C and P=155kPa. A stirrer inside the device transfers 35.0 kJ of shaft work to the air. Some heat is delivered to the system to maintain the air temperature at 2C. The air volume doubles in the process, when the piston freely moves upward, and generates 54.7kJ of boundary work. (a) What is the change in the potential energy of the system (in kJ )? (b) What is the change in the kinetic energy of the system (in kJ)? (c) What is the change in the internal energy of the system (in kJ)? (d) What is the amount of heat transfer to the system (in kJ )? (e) Is this a closed system or an open system? Problem 2: Consider a gas with a specific volume of 4.684cm3/g, a molecular weight of 31.99g/mol, and a specific internal energy of 1706J/mol at 42.19 bar. Use the following information to answer the questions. 1 bar m3=100,000J;1m3=1,000,000cm3 (a) What is the specific molar volume of the gas (in cm3/mol )? (b) What is the specific enthalpy of the gas (in J/mol )? (c) The gas enters a process unit at a constant mass flow rate of 200.0kg/s. The pressure of the gas remains constant (42.19 bar at inlet and exit), but the specific volume of the gas increases to 6.500cm3/g at the exit. What is the volumetric flow rate of the gas at the exit (in m3/s )? (d) What is the rate of flow work generated in this process ((W)f in kW) ? (e) Is this a closed system or an open system? (f) Is this a steady-state or an unsteady-state process