Question 11 ( The equilibrium constant is given for one of two hypothetical reactions below. Determine the value of the missing equilibrium constant, K₂ 4A + 2B₂ = 4AB, K₁ = 1.89 x 107 2 AB 2A + B₂, K₂ = ? 2.8 x 10-15 2.6 x 10-8 2.3 x 10-4 3.6 x 1014 none of the above.

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QUESTION 2 Consider the following reaction and its equilibrium constant: 12(g) + Br2(g) = 2 IBr(g) Kc=1.1 x 102 A reaction mixture contains 0.51 M 12, 0.27 M Br2 and 3.5 M IBr. Which of the following statements is TRUE concerning this system? OA. The reaction quotient will decrease. OB. The reaction will shift in the direction of reactants. OC. The system is at equilibrium. OD. The reaction will shift in the direction of products. O E. The equilibrium constant will decrease.

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Question 1 1 Consider the following reaction at 200 °C: 2C0(g) + 02(g) = 2C02(g) An equilibrium mixture contains 0.200 mol CO, 1.30 mol 02 and 0.300 mol CO2 in a 500. mL reactor. At a certain instant, a valve is opened, and 0.100 mol of CO2 is added to the reactor. Determine the value of Ke at 200 °C Once equilibrium has been re-established, the concentration of oxygen gas in the reactor was measured to be 2.66 M. Determine the concentration of the other species present in the system for this set of conditions.

Question 7 of 25 Submit If the equilibrium constant of a given reaction is 2.54, what is the equilibrium constant of its reverse reaction? 1 3 C 7 9. +/- x 10 0 LO 00

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4 NH3(g)+7o2 4 no2 (g)+6 h2o (g) what is the correct expression for the pressure based equilibrium constant for the reaction above?

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