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d. Only products will be present. e. Roughly equal amounts of products and reactants will be present. 4. A 3.80 mol sample of HI is placed in a 1.00 L vessel at 460 °C, which is allowed to undergo decomposition according to the equation 2HI(g) = H₂(g) +1₂(g). At equilibrium, there is 1.85 mol of L₂(g) present in the flask. What is the value of the equilibrium constant (Kc) for the reaction at 460 °C? a. 342.25 b. 0.24 C. 18.50 d. 34.23 e. 4.22 of F₂(g) are added to an empty

d. Only products will be present. e. Roughly equal amounts of products and reactants will be present. 4. A 3.80 mol sample of HI is placed in a 1.00 L vessel at 460 °C, which is allowed to undergo decomposition according to the equation 2HI(g) = H₂(g) +1₂(g). At equilibrium, there is 1.85 mol of L₂(g) present in the flask. What is the value of the equilibrium constant (Kc) for the reaction at 460 °C? a. 342.25 b. 0.24 C. 18.50 d. 34.23 e. 4.22 of F₂(g) are added to an empty

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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Question 4. Practice exam. Will post the answer, just need help with the concept so please explain. Thank you!
Answer Section MULTIPLE CHOICE 1. 2. 3. ANS: E ANS: E ANS: B ANS: A ANS: D 6. ANS: B 7. ANS: A 8. ANS: E 9. ANS: B 10. ANS: D 11. ANS: B 4. 5. 12. ANS: E 13. ANS: A 14. ANS: A 15. ANS: A 16. ANS: D 17. ANS: A
Transcribed Image Text:Answer Section MULTIPLE CHOICE 1. 2. 3. ANS: E ANS: E ANS: B ANS: A ANS: D 6. ANS: B 7. ANS: A 8. ANS: E 9. ANS: B 10. ANS: D 11. ANS: B 4. 5. 12. ANS: E 13. ANS: A 14. ANS: A 15. ANS: A 16. ANS: D 17. ANS: A
4. d e. a. The concentrations of H₂ and HCI will decrease as the system approaches equilibrium. The concentration of HCI will increase as the system approaches equilibrium. A 3.80 mol sample of HI is placed in a 1.00 L vessel at 460 °C, which is allowed to undergo decomposition according to the equation 2HI(g) = H₂(g) + I₂(g). At equilibrium, there is 1.85 mol of I2(g) present in the flask. What is the value of the equilibrium constant (Kc) for the reaction at 460 °C? a. 342.25 b. 0.24 C. 18.50 d. 34.23 e. 4.22 5. For the reaction 2NO(g) + 3F₂ (g) = 2NOF; (g), 0.20 mol of NO(g) and 0.30 mol of F:(g) are added to an empty 1.0 L container. equilibrium? If x moles of NOF3(g) are present at equilibrium, how many moles of F2(g) are present at 0.30 - x b. 0.30-2x d. c. 0.06 0.20x 3. The value of the equilibrium constant (K) for the reaction N₂(g) + 3H₂(g) + 2NH; (g) is 4.34x10³ at 300 °C. Which of the following statements will be true regarding the system at equilibrium? a. The products will predominate. b. The reactants will predominate. c. Only reactants will be present. d. Only products will be present. e. Roughly equal amounts of products and reactants will be present. 0.30 - e. 0.20 - x
Transcribed Image Text:4. d e. a. The concentrations of H₂ and HCI will decrease as the system approaches equilibrium. The concentration of HCI will increase as the system approaches equilibrium. A 3.80 mol sample of HI is placed in a 1.00 L vessel at 460 °C, which is allowed to undergo decomposition according to the equation 2HI(g) = H₂(g) + I₂(g). At equilibrium, there is 1.85 mol of I2(g) present in the flask. What is the value of the equilibrium constant (Kc) for the reaction at 460 °C? a. 342.25 b. 0.24 C. 18.50 d. 34.23 e. 4.22 5. For the reaction 2NO(g) + 3F₂ (g) = 2NOF; (g), 0.20 mol of NO(g) and 0.30 mol of F:(g) are added to an empty 1.0 L container. equilibrium? If x moles of NOF3(g) are present at equilibrium, how many moles of F2(g) are present at 0.30 - x b. 0.30-2x d. c. 0.06 0.20x 3. The value of the equilibrium constant (K) for the reaction N₂(g) + 3H₂(g) + 2NH; (g) is 4.34x10³ at 300 °C. Which of the following statements will be true regarding the system at equilibrium? a. The products will predominate. b. The reactants will predominate. c. Only reactants will be present. d. Only products will be present. e. Roughly equal amounts of products and reactants will be present. 0.30 - e. 0.20 - x
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