Steam at 600 kPa and 210°C enters a nozzle at 60 m/s. It exits the nozzle at 140 kPa. The environment is at 100 kPa and 300 K. Find  a. The exit velocity assuming the process is reversible.  b. The...

Steam at 600 kPa and 210°C enters a nozzle at 60 m/s. It exits the nozzle at 140 kPa. The environment is at 100 kPa and 300 K. Find

 a. The exit velocity assuming the process is reversible.

 b. The exit velocity for a process with an isentropic efficiency of 0.85.

 c. The irreversibility of each of the above processes.