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Equilibrium

Equilibrium. K c and K P.

pisces
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Equilibrium

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  1. Equilibrium Kc and KP

  2. At a temperature of 700 K, the equilibrium constant is 3.164 x 103 for the following reaction:C2H4(g) + H2(g) ↔ C2H6(g)What will be the equilibrium concentration of ethene if the concentration of H2 is 0.0619 M and the concentration of C2H6 is 1.055 M? • 2.45 x 10-12 M • 1.98 x 10-7 M • 5.39 x 10-3 M • 0.197 M • 1.53 x 103 M 0

  3. The equilibrium constant of the following reaction for the decomposition of phosgene at 25oC is 4.282 x 10-2.COCl2(g) ↔ CO(g) + Cl2(g)What is the concentration of COCl2 when the concentrations of both products are 5.90 x 10-3 M? • .0126 M • .09198 M • 1.28 x 10-6 M • 3.97 x 10-5 M • 8.13 x 10-4 M 0

  4. Which of the following represents the correct equilibrium expression for the synthesis of carbon monoxide?2C(s) + O2(g) ↔ 2CO(g) • Kc = [CO]2 /([C]2[O2]) • Kc = [C]2[O2] / [CO]2 • Kc = [O2] / [CO]2 • Kc = [CO]2 / [O2] • Kc = [CO] /([C][O2]) 0

  5. Determine the value of Kc for the following reaction:2NO2(g) ↔ 2NO(g) + O2(g)Kp = 6.76 x 10-5 • 6.23 x 10-8 • 1.80 x 10-6 • 1.18 x 10-5 • 5.69 x 10-4 • 0.0361 0

  6. Predict the effect that decreasing the pressure will have on the following reaction system.H2(g) + Cl2(g) ↔ 2HCl(g) • more HCl will be formed • more H2 and Cl2 will form • it will speed up the reaction, but the relative amounts of substances won’t change • it will slow down the reaction, but the relative amounts of substances won’t change • it is impossible to predict 0

  7. Predict the effect that decreasing the pressure will have on the following reaction system.3O2(g) ↔ 2O3(g) • more O2 will be formed • more O3 will be formed • it will speed up the reaction, but the relative amounts of substances won’t change • it will slow down the reaction, but the relative amounts of substances won’t change • it is impossible to predict 0

  8. Predict the effect that increasing the pressure will have on the following reaction system.2H2O2(aq) ↔ 2H2O(l) + O2(g) • more H2O and O2 will be formed • more H2O2 will be formed • it will speed up the reaction, but the relative amounts of substances won’t change • it will slow down the reaction, but the relative amounts of substances won’t change • it is impossible to predict 0

  9. What will be the effect on the following reaction system if copper(II) chloride is added?2Al(s) + 3Cu2+(aq) ↔ 3Cu(s) + 2Al3+(aq) • more solid copper and aluminum ions will be produced • more solid aluminum and copper ions will be produced • no effect since copper(II) chloride is not involved in the reaction • impossible to predict • the world will stop rotating about its axis, so please don’t do it 0

  10. 0.05 mol of solid HgCl2 is vaporized in a 1.00 L evacuated flask at 680 K. What is the pressure inside the flask? • 0.05 atm • 1.00 atm • 2.0 atm • 2.8 atm • 3.2 atm 0

  11. Select the molecule that has all of its atoms in the same plane. • BCl3 • CH4 • SF6 • NH3 • PCl3 0

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