4. Le Chatelier's Principle: Use this equation to answer the following questions. 2 ZnS(a9) + 3 O2(g) +→ 2 ZnO(s) + 2 SO2« AH=878.2 kJ A) Explain using collision theory how a decrease in volume will affect this equilibrium. B) Which direction will the equilibrium shift if I: (Explain your answer using collision theory!) i. decrease ZnS ?

4. Le Chatelier's Principle: Use this equation to answer the following questions. 2 ZnS(a9) + 3 O2(g) +→ 2 ZnO(s) + 2 SO2« AH=878.2 kJ A) Explain using collision theory how a decrease in volume will affect this equilibrium. B) Which direction will the equilibrium shift if I: (Explain your answer using collision theory!) i. decrease ZnS ?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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When the following reaction reached equilibrium at 325 K, the equilibrium constant was found to be 172. When a sample was taken of the equilibrium mixture, it was found to contain 0.0714 M NO,. What was the equilibrium concentration of N,O,? 2° 2NO,g) N,0,g)
Consider the reaction. NaC2O2H3(s) <--- H2O ------> NaC2O2H3(aq), which is at equilibrium in an open flask in the lab at room temperature. You add more water to the equilibrium mixture. When the system reestablishes equilibrium, what has changed? a. the concentration of NaC2H3O2(aq) does not change b. heat is produced c. the concentration of NaC2H3O2(aq) decreases d. the concentration of the water increases
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Decide whether each of the following statements is true or false. If false, change the wording of the statement to make it true. a) The magnitude of the equilibrium constant is always independent of temperature. b) When two chemical equations are added to give a net equation, the equilibrium constant for the net equation is the product of the equilibrium constants of the summed equations. c) The equilibrium constant for a reaction has the same value as K for the reverse reaction. d) Only the concentration of CO2 appears in the equilibrium expression for the reaction: CaCO3 (s) ↔ CaO (s) + CO2 (g). e) For the reaction CaCO3 (s) ↔ CaO (s) + CO2 (g), the value of K is numerically the same whether the amount of CO2 is expressed as molarity or as gas pressure.
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For the generic reaction, A (g) = B (g) consider each value of K and initial concentration of A. For which set of values does the x is small approximation most likely apply? ОК - 1.0 х 106, [A] - 0.150 М K= 1.0 x 10-1, [A] = 0.150 M O K= 1.0 x 106, [A] = 0.00150 M ок-1.0 х 101, [A] - 0.00150 М
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= O KINETICS AND EQUILIBRIUM Using Le Chatelier's Principle to predict the result of changing... Acetylene and oxygen react to form carbon dioxide and water, like this: 2C₂H₂(g) +50₂(g) → 4CO₂ (g)+2H₂O(g) Suppose a mixture of C₂H₂, O₂, CO₂ and H₂O has come to equilibrium in a closed reaction vessel. Predict what change, if any, the perturbations in the table below will cause in the composition of the mixture in the vessel. Also decide whether the equilibrium shifts to the right or left. perturbation Some H₂O is removed. Some C₂H, is added. change in composition The pressure of C₂H₂ will The pressure of O₂ will The pressure of O₂ will The pressure of CO₂ will ? ? ? ? ? V go up. go down. not change. shift in equilibrium O to the right to the left x O (none) 3/5 to the right to the left (none)
Consider the equilibrium system described by the chemical reaction below, which has a value of Kc equal to 1.2 x 104 at a certain temperature. If a solid sample of NH.SH decomposes, what will the equilibrium concentration of NH3 be? NH:SH(s) = NH3(g) + H2S(g) 1 2 3 NEXT > Based on the given values, set up ICE table in order to determine the unknown. NH.SH(s) NH:(g) H2S(g) Initial (M) Change (M) Equilibrium (M) RESET 1.2 x 104 +x +2x -2x 1.2 x 104 + x 1.2 x 104 - x 1.2 x 104 + 2x 1.2 x 104- 2x