In a reactor two stream are entering, one with CO2 at 10 atm and 27oC, and another with H2O at 10 atm and 0oC, producing CH4, CO2, H2O, and O2 at 10 atm and 23oC, what are the total degrees of freedom?

Correct Answer: 17
Total species = 1 + 1 + 4 = 6, total stream flows = 3, stream pressures = 3, stream temperatures = 3, heat released = 1, and extent of reaction = 1, => degrees of freedom = 6 + 3 + 3 + 3 + 1 + 1 = 17.