Hydrogen at 100 kPa, 25oC is mixed with oxygen in an adiabatic mixing chamber. The flow rate

Question:

Hydrogen at 100 kPa, 25oC is mixed with oxygen in an adiabatic mixing chamber. The flow rate of hydrogen is 2 kmol/s and that of oxygen is 1 kmol/s. If the mixture leaves the chamber at 100 kPa, determine
(a) The temperature at the exit (T2)
(b) The rate of entropy generation (Sgen) in the device. Assume no chemical reaction and use the PG mixture model.