The equilibrium constant for the reaction N2(g) + O2(g) 2NO(g) is 1.69 × 10−3 at 2300K. A mixture consisting of 5.0 g of nitrogen and 2.0 g of oxygen in a container of volume 1.0dm3 is heated to 2300K and allowed to come to equilibrium. Calculate the mole fraction of NO at equilibrium.