Nitrosyl bromide decomposes according to the following equation: 2NOBr (g) ⇌ 2NO (g) + Br2 (g) A sample of NOBr containing 0.60 mol  was placed in an otherwise empty 1.00 L flask. At equilibrium the flask contained 0.46 mol of NOBr. Calculate the equilibrium constant for the decomposition of nitrosyl bromide.

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