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4. Which of the following statement is correct about a chemical reaction? a. All chemical reactions are reversible. b. A reaction is complete when it has reached equilibrium. c. There are no reactants left at equilibrium; only products. d. If the forward reaction is exothermic, the reverse is also exothermic. 5. Which of the following values for equilibrium constant reflects favor for the formation of products? а. 1.8 х 10-27 b. 0.0021 c. 0.90 d. 10.4

4. Which of the following statement is correct about a chemical reaction? a. All chemical reactions are reversible. b. A reaction is complete when it has reached equilibrium. c. There are no reactants left at equilibrium; only products. d. If the forward reaction is exothermic, the reverse is also exothermic. 5. Which of the following values for equilibrium constant reflects favor for the formation of products? а. 1.8 х 10-27 b. 0.0021 c. 0.90 d. 10.4

Chemistry
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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1. Consider the reaction A(g) + 2B(9) 4 2C(g) + D) If Q<K, which of the following is true about the reaction system? a. There are equal amounts of the substances. b. There is less substance D than at the start of the reaction. c. There is more substance B than at the start of the reaction. d. There is more substance C than at the start of the reaction. 2. What is the correct equilibrium constant expression for the reaction in number 1? [c]? [A][B]2 [A][B]? [A][B]? a. K : c. K = [C] [D] [C? [D] [A][B]? b. Kc : d. K 3. Which condition favors the forward direction of a reversible reaction? b. Q<K a. Q=K c. Q>K d. Q=0 4. Which of the following statement is correct about a chemical reaction? a. All chemical reactions are reversible. b. A reaction is complete when it has reached equilibrium. c. There are no reactants left at equilibrium; only products. d. If the forward reaction is exothermic, the reverse is also exothermic. 5. Which of the following values for equilibrium constant reflects favor for the formation of products? a. 1.8 x 10-27 b. 0.0021 c. 0.90 d. 10.4
Transcribed Image Text:1. Consider the reaction A(g) + 2B(9) 4 2C(g) + D) If Q<K, which of the following is true about the reaction system? a. There are equal amounts of the substances. b. There is less substance D than at the start of the reaction. c. There is more substance B than at the start of the reaction. d. There is more substance C than at the start of the reaction. 2. What is the correct equilibrium constant expression for the reaction in number 1? [c]? [A][B]2 [A][B]? [A][B]? a. K : c. K = [C] [D] [C? [D] [A][B]? b. Kc : d. K 3. Which condition favors the forward direction of a reversible reaction? b. Q<K a. Q=K c. Q>K d. Q=0 4. Which of the following statement is correct about a chemical reaction? a. All chemical reactions are reversible. b. A reaction is complete when it has reached equilibrium. c. There are no reactants left at equilibrium; only products. d. If the forward reaction is exothermic, the reverse is also exothermic. 5. Which of the following values for equilibrium constant reflects favor for the formation of products? a. 1.8 x 10-27 b. 0.0021 c. 0.90 d. 10.4
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