# If one starts with pure NO2(g) at a pressure of 0.500 atm, the total pressure inside the reaction vessel when 2NO2(g) <--> 2NO(g) + O2(g) reaches equilibrium is 0.674 atm.  Calculate the equilibrium partial pressure of NO2.

Question

If one starts with pure NO2(g) at a pressure of 0.500 atm, the total pressure inside the reaction vessel when 2NO2(g) <--> 2NO(g) + O2(g) reaches equilibrium is 0.674 atm.  Calculate the equilibrium partial pressure of NO2.