Phosphorus and bromine react to form phosphorus tribromide, like this: PA(9) + 6 Br,(9) → 4 PBr,(g) Also, a chemist finds that at a certain temperature the equilibrium mixture of phosphorus, bromine, and phosphorus tribromide has the following composition: compound pressure at equilibrium PA 44.8 atm Br2 55.0 atm PB13 53.4 atm Calculate the value of the equilibrium constant K, for this reaction. Round your answer to 2 significant digits. K, - 0

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