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1. When the system A + B = C+D is at equilibrium, a. the sum of the concentrations of A and B must equal the sum of the concentrations of C and D. b. both the forward and the reverse reactions have stopped c. the forward reaction has stopped. d. the reverse reaction has stopped. 2. A large value of Kc as compared to Qc tells us which of the following? a. The reaction lies to the left b. The reaction lies in the middle c. The reaction lies to the right d. The reaction stops. 3. Write the mathematical expression for the reaction quotient, Qc, for this reaction: N2(g) 3H2(g) = 2NH3(g) a. Qc = [N2][H2]F/[NH3? b. Qc = [NH3]2/ [N2][H2]3

1. When the system A + B = C+D is at equilibrium, a. the sum of the concentrations of A and B must equal the sum of the concentrations of C and D. b. both the forward and the reverse reactions have stopped c. the forward reaction has stopped. d. the reverse reaction has stopped. 2. A large value of Kc as compared to Qc tells us which of the following? a. The reaction lies to the left b. The reaction lies in the middle c. The reaction lies to the right d. The reaction stops. 3. Write the mathematical expression for the reaction quotient, Qc, for this reaction: N2(g) 3H2(g) = 2NH3(g) a. Qc = [N2][H2]F/[NH3? b. Qc = [NH3]2/ [N2][H2]3

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
9th Edition
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter18: Principles Of Chemical Reactivity: Entropy And Free Energy
Section: Chapter Questions
Problem 65IL: Titanium(IV) oxide is converted to titanium carbide with carbon at a high temperature. TiO2(s) + 3...
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1. When the system A + B = C+ D is at equilibrium, a. the sum of the concentrations of A and B must equal the sum of the concentrations of C and D. b. both the forward and the reverse reactions have stopped c. the forward reaction has stopped. d. the reverse reaction has stopped. 2. A large value of Kc as compared to Qc tells us which of the following? a. The reaction lies to the left b. The reaction lies in the middle c. The reaction lies to the right d. The reaction stops. 3. Write the mathematical expression for the reaction quotient, Qc, for this reaction: = 2NH3(g) a. Qc = [N2|[H2]/[NH3P b. Qc = [NH3]2/ [N2][H2]3 N2(g) 3H2(g) 4. Calculate the reaction quotient of this reaction: 2S03(g) 2SO2(g) O2(g) Given: Kc = 0.230 [SO3] = 0.00 M, [SO2] = 1.00 M, [02] = 1.00 M a. 0 (b) 1 (c) 2 (d) 3 5. Based on the calculated reaction quotient in number 4, determine the direction in which each system will proceed to reach equilibrium. forward (b) reverse
Transcribed Image Text:1. When the system A + B = C+ D is at equilibrium, a. the sum of the concentrations of A and B must equal the sum of the concentrations of C and D. b. both the forward and the reverse reactions have stopped c. the forward reaction has stopped. d. the reverse reaction has stopped. 2. A large value of Kc as compared to Qc tells us which of the following? a. The reaction lies to the left b. The reaction lies in the middle c. The reaction lies to the right d. The reaction stops. 3. Write the mathematical expression for the reaction quotient, Qc, for this reaction: = 2NH3(g) a. Qc = [N2|[H2]/[NH3P b. Qc = [NH3]2/ [N2][H2]3 N2(g) 3H2(g) 4. Calculate the reaction quotient of this reaction: 2S03(g) 2SO2(g) O2(g) Given: Kc = 0.230 [SO3] = 0.00 M, [SO2] = 1.00 M, [02] = 1.00 M a. 0 (b) 1 (c) 2 (d) 3 5. Based on the calculated reaction quotient in number 4, determine the direction in which each system will proceed to reach equilibrium. forward (b) reverse
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