Nitrogen monoxide decomposes into diatomic nitrogen and oxygen at high temperatures. A one-liter reaction vessel at 2000°C contains an equilibrium mixture of 192 grams of O2, 112 grams of N2, and 3 grams of NO. Using values of 14 grams per mole and 16 grams per mole for the respective molar masses of atomic nitrogen and oxygen, what is the equilibrium constant for the decomposition at this temperature to two significant figures?