1. 5 mol/s of Methane enters a turbine at T = 600K and P = 10 bar and leaves at T = 400K and P = 2 bar. How much work is produced in kW? Assume Methane behaves as an ideal gas with a constant C_p^* = 46.224J/molK. (3 pt)

2. A compressor is being used to adiabatically compress 5 mol/s of ammonia. The ammonia comes into the compressor at 100^oC and 10 bar, then exits at 150^oC and 25 bar. How much work is required for this process? Assume that ammonia is an ideal gas with a constant C_v^* of 30 J/molK. (3 pts)

3. Superheated steam enters an adiabatic, steady-state throttling valve at 70 bar and 600^oC. If it leaves the valve at atmospheric pressure, what is the exiting temperature?

1. Using the steam tables (3 pts)
2. Using the Mollier diagram (must show process marked on Mollier) (3 pts)
3. Assuming steam is an Ideal Gas with a Cp = 4.184 J/gK (2 pts)