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Consider the equilibrium 2 N2O5 (g) ⇄ 4 NO2 (g) + O2 (g).When 0.400 atm N2O5 is placed in a closed reaction vessel at 300.0 K and is allowed to come to equilibrium, the equilibrium partial pressure of NO2 is 0.280 atm.What is the value of Kp at 300.0 K?
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