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a reaction is spontaneous or nonspontaneous? ctron configuration and charge

a reaction is spontaneous or nonspontaneous? ctron configuration and charge

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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MULTIPLE CHOICE NUMBERS 1-5 ONLY

II. Multiple Choice Directions: Choose the letter that corresponds to the correct answer. Write your answer on the space provided. 1. In case of nonspontaneous reaction, which of the following reaction is favoured ? A. Forward C. both forward and reverse B. Reverse D. reaction stops 2. In which of the following physical states does a given substance have the highest entropy? C. liquid D. entropy is the same 3. Which of the following refers to all spontaneous processes? A. Solid B. Gas A. Are exothermic B. Are endothermic C. involve an increase in entropy D. release free energy C. equilibrium position D. Keq 5. Which of the following are factors that determine whether a reaction is spontaneous or nonspontaneous? 4. Which of the following is measured according to the amount of disorder in a system? A. Activation energy B. Entropy A. Entropy and disorder B. Entropy and enthalpy change C. electron configuration and charge D. energy and the heat of reaction 6. Which of the following exhibits a negative entropy change? A. Fast moving vehicles that halt and line up during red lights B. An ice cube melts on the table C. A box of marbles drops , and the marbles scatter on the floor 7. Which of the following is a spontaneous process? A. A ball rolls up on a hill B. yellow as it ripens D. A&B C. Throwing 50 coins results in all tails 8. According to the third law of thermodynamics, at what temperature will entropy become zero? C. OK A. 0°C B. 25°C D. 273 K 9. When work is done on a system (+ G) to bring it into an ordered state (- S), which of the following is true? B. The B. The process is spontaneous is spontaneous A. The system releases heat C. The system is endothermic D. A&C 10. Which of the following substances has zero (0) Gibbs free energy formation? B. CO2) A. N2(g) C. MgO (9) D. NH,Cl) 11.Which situation appears to violate the collision theory? A. The reaction rate decreases as the reaction mixture is cooled. B. The reaction rate increases as the surface area of the reactants increases. C. The reaction rate increases with reactivity of materials. D. A reaction takes place more rapidly in less concentrated reactants. 12. Which statement is true about catalysts? A. They can slow down the reaction by consuming the reactants. B. They are unrecovered at the end of the reaction. C. The amount of catalysts decreases as the reaction continues. D. They speed up the reaction 13. How does temperature affect the rate of a chemical reaction? A. Increases B. Decreases C. Keeps it constant D. Makes it fluctuate 14. Knowing that a more active metal will replace a less active metal in a compound, which of the following statements is true? Lead Gold Mercury Oper Silver Most Least active active A. Gold would replace silver B. Mercury would replace lead C. Silver would replace copper D. Lead would replace copper
Transcribed Image Text:II. Multiple Choice Directions: Choose the letter that corresponds to the correct answer. Write your answer on the space provided. 1. In case of nonspontaneous reaction, which of the following reaction is favoured ? A. Forward C. both forward and reverse B. Reverse D. reaction stops 2. In which of the following physical states does a given substance have the highest entropy? C. liquid D. entropy is the same 3. Which of the following refers to all spontaneous processes? A. Solid B. Gas A. Are exothermic B. Are endothermic C. involve an increase in entropy D. release free energy C. equilibrium position D. Keq 5. Which of the following are factors that determine whether a reaction is spontaneous or nonspontaneous? 4. Which of the following is measured according to the amount of disorder in a system? A. Activation energy B. Entropy A. Entropy and disorder B. Entropy and enthalpy change C. electron configuration and charge D. energy and the heat of reaction 6. Which of the following exhibits a negative entropy change? A. Fast moving vehicles that halt and line up during red lights B. An ice cube melts on the table C. A box of marbles drops , and the marbles scatter on the floor 7. Which of the following is a spontaneous process? A. A ball rolls up on a hill B. yellow as it ripens D. A&B C. Throwing 50 coins results in all tails 8. According to the third law of thermodynamics, at what temperature will entropy become zero? C. OK A. 0°C B. 25°C D. 273 K 9. When work is done on a system (+ G) to bring it into an ordered state (- S), which of the following is true? B. The B. The process is spontaneous is spontaneous A. The system releases heat C. The system is endothermic D. A&C 10. Which of the following substances has zero (0) Gibbs free energy formation? B. CO2) A. N2(g) C. MgO (9) D. NH,Cl) 11.Which situation appears to violate the collision theory? A. The reaction rate decreases as the reaction mixture is cooled. B. The reaction rate increases as the surface area of the reactants increases. C. The reaction rate increases with reactivity of materials. D. A reaction takes place more rapidly in less concentrated reactants. 12. Which statement is true about catalysts? A. They can slow down the reaction by consuming the reactants. B. They are unrecovered at the end of the reaction. C. The amount of catalysts decreases as the reaction continues. D. They speed up the reaction 13. How does temperature affect the rate of a chemical reaction? A. Increases B. Decreases C. Keeps it constant D. Makes it fluctuate 14. Knowing that a more active metal will replace a less active metal in a compound, which of the following statements is true? Lead Gold Mercury Oper Silver Most Least active active A. Gold would replace silver B. Mercury would replace lead C. Silver would replace copper D. Lead would replace copper
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