Question: a gaseous mixture of carbon dioxide and oxygen mole fraction...
A gaseous mixture of carbon dioxide and oxygen (mole fraction of 0.8 and 0.2 respectively) undergoes isentropic expansion through a nozzle. At the entrance, the conditions are 700 K, 5 atm, 3 m / s. At the exit, we have 1 atm. Determine the temperature and speed at the exit.
Answer: T=517 K, speed= 624 m/s