1. Acetylene at 50.0 psia, 65.0°F is accelerated through a converging-diverging nozzle isentropically until it reaches an exit pressure of 14.7 psia. Assuming the flow enters the nozzle with a negligibly small velocity, determine the exit Mach number, temperature, and exit to throat area ratio.
2. Carbon dioxide gas at 13.8 MPa, 20.0°C is expanded isentropically through a converging-diverging nozzle until its exit temperature reaches -100.°C. Assuming the flow enters with a negligible inlet velocity, determine the exit Mach number, pressure, and exit to throat area ratio.