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N2 reacts with H, to form NH3. The equilibrium constant, Kp. for this reaction is 4.55*10-5 at 723 K. N2(g) + 3H2(E)=2NH3() The standard enthalpy

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N2 reacts with H, to form NH3. The equilibrium constant, Kp. for this reaction is 4.55*10-5 at 723 K. N2(g) + 3H2(E)=2NH3() The standard enthalpy change for this reaction (AH) is -111 kJ/mol. (a) Predict the effect on the production of NH3 when the temperature of the equilibrium system is decreased. (b) Use the van't Hoff equation to estimate the equilibrium constant for this reaction at 642 K. Ky at 642 K =

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