[PDF] Le Chateliers Principle Worksheet

Le Chatelier's Principle Worksheet 1) For the reaction below, which change would cause the equilibrium to shift to the right? CH4(g) + 2H2S(g) ↔ CS2(g) +

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Le Chatelier's Principle states that if a stress is applied to a system at equilibrium, the system will adjust, to partially offset the stress and will reach a new state of

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Slot: ___ Page 1 Le Chatelier's Principle Worksheets 1) What is the effect on the total pressure inside a closed vessel if a) More gas is added?

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Le Chatelier's Principle Worksheet 1) For the reaction below, which change would cause the equilibrium to shift to the right? CH4(g) + 2H2S(g) ++ CS2(g) +

[PDF] Le Châteliers Principle Worksheet

Le Châtelier's Principle Worksheet 1) What would happen to the position of the equilibrium when the following changes are made to the equilibrium system

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Le Chatelier's Principle Worksheet

1) For the reaction below, which change would cause the equilibrium to shift to

the right? CH 4 (g) + 2H 2

S(g) ļ CS

2 (g) + 4H 2 (g) (a) Decrease the concentration of dihydrogen sulfide. (b) Increase the pressure on the system. (c) Increase the temperature of the system. (d) Increase the concentration of carbon disulfide. (e) Decrease the concentration of methane.

2) What would happen to the position of the equilibrium when the following

changes are made to the equilibrium system below? 2SO 3 (g) ļ 2SO 2 (g) + O 2 (g) (a) Sulfur dioxide is added to the system. (b) Sulfur trioxide is removed from the system. (c) Oxygen is added to the system.

3) What would happen to the position of the equilibrium when the following

changes are made to the reaction below?

2HgO(s)

ļ Hg(l) + O

2 (g) (a) HgO is added to the system. (b) The pressure on the system increases.

4) When the volume of the following mixture of gases is increased, what will be

the effect on the equilibrium position?

4HCl(g) + O

2 (g) ļ 2H 2

O(g) + 2Cl

2 (g)

5) Predict the effect of decreasing the volume of the container for each equilibrium.

(a) 2H 2

O(g) + N

2 (g) ļ 2H 2 (g) + 2NO(g) (b) SiO 2 (s) + 4HF(g) ļ SiF 4 (g) + 2H 2 O(g) (c) CO(g) + H 2 (g) ļ C(s) + H 2 O(g)

6) Predict the effect of decreasing the temperature on the position of the

following equilibria. (a) H 2 (g) + Cl 2 (g) ļ 2HCl(g) + 49.7 kJ (b) 2NH 3 (g) ļ N 2 (g) + 3H 2 (g) ǻ H = 37.2 kJ (c) CO(g) + H 2

O(g) ļ CO

2 (g) + H 2 (g) ǻ H = -27.6 kJ

Solutions

1) c, increase the temperature of the system because a decrease in temperature

favors the exothermic reaction.

2) (a) Shifts left to counteract the increased concentration of SO

2 (g). (b) Shifts left to counteract the decrease in concentration of SO 3 (g). (c) Shifts left to counteract the increase in concentration of O 2 (g).

3) (a) No shift because pure liquids and solids have no effect on the

equilibrium position. (b) Shifts left to decrease the number of moles of gas.

4) Shifts left to increase the number of gas molecules.

5) (a) Shifts left to produce fewer number of gas molecules.

(b) Shifts right to produce fewer number of moles of gas. (c) Shifts right to produce fewer number of moles of gas.

6) (a) Shifts right because an increase in temperature favors the

endothermic reaction.quotesdbs_dbs7.pdfusesText_5

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[PDF] Worksheet: Le Chateliers Principle Name______________

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