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Equilibrium Kc and KP.

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Presentation on theme: "Equilibrium Kc and KP."— Presentation transcript:

1 Equilibrium Kc and KP

2 At a temperature of 700 K, the equilibrium constant is 3
At a temperature of 700 K, the equilibrium constant is 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 M and the concentration of C2H6 is M? 2.45 x M 1.98 x 10-7 M 5.39 x 10-3 M 0.197 M 1.53 x 103 M 1 2 3 4

3 The equilibrium constant of the following reaction for the decomposition of phosgene at 25oC is x 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 M 1.28 x 10-6 M 3.97 x 10-5 M 8.13 x 10-4 M 1 2 3 4

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]) 1 2 3 4

5 Determine the value of Kc for the following reaction: 2NO2(g) ↔ 2NO(g) + O2(g) Kp = 6.76 x 10-5
0.0361 1 2 3 4

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 1 2 3 4

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 1 2 3 4

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 1 2 3 4

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 1 2 3 4

10 05 mol of solid HgCl2 is vaporized in a 1
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 1 2 3 4

11 Select the molecule that has all of its atoms in the same plane.
BCl3 CH4 SF6 NH3 PCl3 1 2 3 4


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