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Os processos que são vistos a seguir podem ser considerados como resultantes da soma de duas reaçöes, cada uma delas tendo a sua própria constante de equilfbrio, $K_1$ e $K_2$. Qual a relaçäo entre a constante de equilibrio da reaçäo global, $K_{\text {gutat }}$ e as constantes de equiIfrio das reaçöes que se somam, $K_1$ e $K_2$ ? $$ \begin{aligned} & \mathrm{Gu}(\mathrm{OH})_2(\mathrm{~s})+4 \mathrm{NH}_3(\mathrm{aq}) \rightleftarrows \\ & \mathrm{Cu}\left(\mathrm{NH}_3\right)_4^{2+}(\mathrm{aq})+2 \mathrm{OH}^{-}(\mathrm{aq}) \quad K_{\text {global }} \\ & \mathrm{Cu}(\mathrm{OH})_2(\mathrm{~s}) \rightleftarrows \mathrm{Cu}^{2+}(\mathrm{aq})+2 \mathrm{OH}^{-}(\mathrm{aq}) \\ & K_1 \\ & \mathrm{Cu}^{2+}(\mathrm{aq})+4 \mathrm{NH}_3(\mathrm{aq}) \rightleftarrows \mathrm{Cu}\left(\mathrm{NH}_3\right)_4^{2+}(\mathrm{aq}) \\ & K_2 \\ & \end{aligned} $$

   Os processos que são vistos a seguir podem ser considerados como resultantes da soma de duas reaçöes, cada uma delas tendo a sua própria constante de equilfbrio, $K_1$ e $K_2$. Qual a relaçäo entre a constante de equilibrio da reaçäo global, $K_{\text {gutat }}$ e as constantes de equiIfrio das reaçöes que se somam, $K_1$ e $K_2$ ?
$$
\begin{aligned}
& \mathrm{Gu}(\mathrm{OH})_2(\mathrm{~s})+4 \mathrm{NH}_3(\mathrm{aq}) \rightleftarrows \\
& \mathrm{Cu}\left(\mathrm{NH}_3\right)_4^{2+}(\mathrm{aq})+2 \mathrm{OH}^{-}(\mathrm{aq}) \quad K_{\text {global }} \\
& \mathrm{Cu}(\mathrm{OH})_2(\mathrm{~s}) \rightleftarrows \mathrm{Cu}^{2+}(\mathrm{aq})+2 \mathrm{OH}^{-}(\mathrm{aq}) \\
& K_1 \\
& \mathrm{Cu}^{2+}(\mathrm{aq})+4 \mathrm{NH}_3(\mathrm{aq}) \rightleftarrows \mathrm{Cu}\left(\mathrm{NH}_3\right)_4^{2+}(\mathrm{aq}) \\
& K_2 \\
&
\end{aligned}
$$
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Química e Reações Químicas 2
Química e Reações Químicas 2
John C. Kotz, Paul… 4th Edition
Chapter 16, Problem 11 ↓

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Os processos que são vistos a seguir podem ser considerados como resultantes da soma de duas reaçöes, cada uma delas tendo a sua própria constante de equilfbrio, $K_1$ e $K_2$. Qual a relaçäo entre a constante de equilibrio da reaçäo global, $K_{\text {gutat }}$ e as constantes de equiIfrio das reaçöes que se somam, $K_1$ e $K_2$ ? $$ \begin{aligned} & \mathrm{Gu}(\mathrm{OH})_2(\mathrm{~s})+4 \mathrm{NH}_3(\mathrm{aq}) \rightleftarrows \\ & \mathrm{Cu}\left(\mathrm{NH}_3\right)_4^{2+}(\mathrm{aq})+2 \mathrm{OH}^{-}(\mathrm{aq}) \quad K_{\text {global }} \\ & \mathrm{Cu}(\mathrm{OH})_2(\mathrm{~s}) \rightleftarrows \mathrm{Cu}^{2+}(\mathrm{aq})+2 \mathrm{OH}^{-}(\mathrm{aq}) \\ & K_1 \\ & \mathrm{Cu}^{2+}(\mathrm{aq})+4 \mathrm{NH}_3(\mathrm{aq}) \rightleftarrows \mathrm{Cu}\left(\mathrm{NH}_3\right)_4^{2+}(\mathrm{aq}) \\ & K_2 \\ & \end{aligned} $$
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Key Concepts

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Chemical Equilibrium
Chemical equilibrium refers to the state in a reversible reaction where the rates of the forward and reverse reactions are equal, leading to constant concentrations of all species involved. It is described by the equilibrium constant, which quantifies the ratio of the concentrations (or activities) of products to reactants at equilibrium according to their stoichiometric coefficients.
Combination of Reactions
When two or more reactions are added together to yield an overall (global) reaction, the equilibrium constant for the overall reaction is the product of the equilibrium constants for the individual reactions. This follows from the laws of chemical equilibrium and the mass action law, which ensure that the net equilibrium constant reflects the multiplicative effect of the component reactions.

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2) A + B ⇌ AB K1 = [AB] / ([A][B]) = 4.0 AB + D ⇌ E + A K2 = ([E][A]) / ([AB][D]) = 3.0 B + D ⇌ E K3 = [E] / ([B][D]) = 12 Given the equations above, how were equations 1 & 2 manipulated to create equation 3? 3) Consider reactions A and B at a particular temperature: Reaction A: NiO(s) + H2(g) ⇌ Ni(s) + H2O(g) Kp = 50 Reaction B: NiO(s) + CO(g) ⇌ Ni(s) + CO2(g) Kp = 700 Reaction C: CO2(g) + H2(g) ⇌ CO(g) + H2O(g) Kp = ? Calculate the Kp value for Reaction C at this temperature. 4) The formation of a complex ion occurs in several steps. Given the series of steps and equilibrium constants below, calculate the equilibrium constant for: A3+(aq) + 2NH2-(aq) ⇌ A(NH2)2+(aq) A3+(aq) + NH2-(aq) ⇌ ANH2^2+(aq) K1 = 200 ANH2^2+(aq) + NH2-(aq) ⇌ A(NH2)2+(aq) K2 = 125

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