Exam 14: Chemical Equilibrium

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The equilibrium constant is given for two of the reactions below.Determine the value of the missing equilibrium constant. A(g)+ B(g)⇌ AB(g)Kc = 0.24 AB(g)+ A(g)⇌ A2B(g)Kc = 3.8 2 A(g)+ B(g)⇌ A2B(g)Kc = ?

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Determine the value of Kp for the following reaction if the equilibrium concentrations are as follows: P(NOCl)eq = 0.22 atm,P(NO)eq = 0.10 atm,P(Cl2)eq = 0.081 atm. 2 NOCl(g)? 2 NO(g)+ Cl2(g)

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Can the Kp and Kc for a reaction ever have the same value? Why or why not?

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Match the following. -K ≈ 1

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Determine the value of Kc for the following reaction if the equilibrium concentrations are as follows: [HCl]eq = 0.13 M,[HI]eq = 5.6 × 10-16 M,[Cl2]eq = 0.0019 M. 2 HCl(g)+ I2(s)⇌ 2 HI(g)+ Cl2(g)

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Consider the following reaction: CO2(g)+ C(graphite)⇌ 2 CO(g) A reaction mixture initially contains 0.56 atm CO2 and 0.32 atm CO.Determine the equilibrium pressure of CO if Kp for the reaction at this temperature is 2.25.

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The reaction below has a Kp value of 3.3 × 10-5.What is the value of Kc for this reaction at 700 K? 2 SO3(g)⇌ 2 SO2(g)+ O2(g)

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Consider the following reaction and its equilibrium constant: I2(g)+ Br2(g)⇌ 2 IBr(g)Kc = 1.1 × 102 A reaction mixture contains 0.41 M I2,0.27 M Br2 and 3.5 M IBr.Which of the following statements is true concerning this system?

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Consider the following reaction at equilibrium.What effect will reducing the volume of the reaction mixture have on the system? Xe(g)+ 2 F2(g)→ XeF4(g)

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Consider the following reaction,equilibrium concentrations,and equilibrium constant at a particular temperature.Determine the equilibrium concentration of NO2(g). N2O4(g)⇌ 2 NO2(g) Kc = 0.21 [N2O4]eq = 0.039 M

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Consider the following reaction at equilibrium.What effect will reducing the pressure of the reaction mixture have on the system? Xe(g)+ 2 F2(g)→ XeF4(g)

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Consider the following reaction at equilibrium.What effect will adding more H2S have on the system? 2 H2S(g)+ 3 O2(g)⇌ 2 H2O(g)+ 2 SO2(g)

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Consider the following reaction and its equilibrium constant: 4 CuO(s)+ CH4(g)⇌ CO2(g)+ 4 Cu(s)+ 2 H2O(g)Kc = 1.10 A reaction mixture contains 0.22 M CH4,0.67 M CO2 and 1.3 M H2O.Which of the following statements is true concerning this system?

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Express the equilibrium constant for the following reaction. 2 Na(s)+ 2 H2O(l)⇌ 2 NaOH(aq)+ H2(g)

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Consider the following reaction,equilibrium concentrations,and equilibrium constant at a particular temperature.Determine the equilibrium pressure of CO. CO(g)+ 2 H2(g)⇌ CH3OH(l)Kp = 2.25 × 104 P(H2)eq = 0.52 atm

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Give the direction of the reaction,if K >> 1.

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The equilibrium constant is equal to 5.00 at 1300 K for the reaction: 2 SO2(g)+ O2(g)⇌ 2 SO3(g). If initial concentrations are [SO2] = 6.00 M,[O2] = 0.45 M,and [SO3] = 9.00 M,the system is

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Which statement is true for the following reaction at equilibrium at 25 C? H2(g)+ Br2(g)⇌ HBr(g);K = 1.9 × 1019

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Express the equilibrium constant for the following reaction. P4(s)+ 5 O2(g)⇌ P4O10(s)

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The equilibrium constant is given for one of the reactions below.Determine the value of the missing equilibrium constant. 2 HD(g)⇌ H2(g)+ D2(g)Kc = 0.28 2 H2(g)+ 2 D2(g)⇌ 4 HD(g)Kc = ?

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