Problem: PL X = 300 m P2 P3 Air, Mr=29 g/mol V=100 m/s INozzle D=70 mm D=5mm The entrance pressure and temperature from a chamber are 4 MPa and 100 C respectively. The entrance air velocity is 100 m/s. The air enters a pipe with ID of 70 mm, and a length of 300 m. At the end of the pipe, there is an orifice with a diameter of 5mm. Air Viscosity is 0.0000228 Pa.s. Assume the initial guess of friction factor is at laminar flow (f=64/Re). Calculate the exit velocity, density and pressure from the nozzle. *Please solve this according to the flow condition depending on your Student ID Last digit of student Perth ID: For Polytropic, k=1.4 b) 4,5,6-both pipe and nozzle under isothermal condition For, y=1.4, Nozzle assume polytropic k=1.4