a. 10. A catalyst accelerates a reaction because A. it removes energy from the reactants. B. it lowers the activation energy for the reaction. C. it increases the number of collisions between molecules. D. it increases the temperature of the molecules in the reaction. E. it supplies energy to reactant molecules. 11. The mechanism for the endothermic (AH = + ) reaction [2A +C → D + F] is as follows: Step 1: Step 2: Step 3: what is the molecularity of step 3? 2A + B →C C+D→ E E → F A) unimolecular E) the molecularity cannot be determined B) bimolecular C) termolecular D) quadmolecular 12. Which one of the following statements about chemical equilibrium is correct? A. At equilibrium, the forward reaction rate equals the reverse reaction rate. B. At equilibrium, the reactant and the product concentrations show no change with time. C. At equilibrium, the reactant and product concentrations are constant. D. At equilibrium the reaction is at the lowest energy condition. E. All are correct 13. The mechanism for the endothermic (AH = + ) reaction [2A →D + F] is as follows: Step 1: Step 2: Step 3: Which species is the catalyst? A + A → B ki = 2.0 x 10-1 (Ms) k2 = 8.0 x 104 (Ms) k3 = 4.0 x 103 s-1 C+B→ D + E E → F + C %3D B) C C) D D) E E) there is no catalyst 14. For the reaction in the previous problem which step is "rate determining"? A) steps1 and 2 B) step 1 C) step 2 D) step 3 15. The mechanism for the endothermic (AH =+) reaction [2A D + F] is as follows: Step 1: Step 2: Which species is the intermediate? A) A A + B → C + D Fast C → 2E + B Slow B) B C) C D) D E) E 16. For which one of the following reactions will Kc= Kp? %3D A) CO(g) + 2H,(g) = CH;OH(g) B) 2FEO(s) + O2(g) =2FEO2(s) C) 203(g) = 30,(g) D) COCI,(g) = CO(g)+Cl,(g) E) SO2(g) + H20(liq) = H2SO3(g)
a. 10. A catalyst accelerates a reaction because A. it removes energy from the reactants. B. it lowers the activation energy for the reaction. C. it increases the number of collisions between molecules. D. it increases the temperature of the molecules in the reaction. E. it supplies energy to reactant molecules. 11. The mechanism for the endothermic (AH = + ) reaction [2A +C → D + F] is as follows: Step 1: Step 2: Step 3: what is the molecularity of step 3? 2A + B →C C+D→ E E → F A) unimolecular E) the molecularity cannot be determined B) bimolecular C) termolecular D) quadmolecular 12. Which one of the following statements about chemical equilibrium is correct? A. At equilibrium, the forward reaction rate equals the reverse reaction rate. B. At equilibrium, the reactant and the product concentrations show no change with time. C. At equilibrium, the reactant and product concentrations are constant. D. At equilibrium the reaction is at the lowest energy condition. E. All are correct 13. The mechanism for the endothermic (AH = + ) reaction [2A →D + F] is as follows: Step 1: Step 2: Step 3: Which species is the catalyst? A + A → B ki = 2.0 x 10-1 (Ms) k2 = 8.0 x 104 (Ms) k3 = 4.0 x 103 s-1 C+B→ D + E E → F + C %3D B) C C) D D) E E) there is no catalyst 14. For the reaction in the previous problem which step is "rate determining"? A) steps1 and 2 B) step 1 C) step 2 D) step 3 15. The mechanism for the endothermic (AH =+) reaction [2A D + F] is as follows: Step 1: Step 2: Which species is the intermediate? A) A A + B → C + D Fast C → 2E + B Slow B) B C) C D) D E) E 16. For which one of the following reactions will Kc= Kp? %3D A) CO(g) + 2H,(g) = CH;OH(g) B) 2FEO(s) + O2(g) =2FEO2(s) C) 203(g) = 30,(g) D) COCI,(g) = CO(g)+Cl,(g) E) SO2(g) + H20(liq) = H2SO3(g)
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
![a.
10. A catalyst accelerates a reaction because
A. it removes energy from the reactants.
B. it lowers the activation energy for the reaction.
C. it increases the number of collisions between molecules.
D. it increases the temperature of the molecules in the reaction.
E. it supplies energy to reactant molecules.
11. The mechanism for the endothermic (AH = + ) reaction [2A +C → D + F] is as follows:
Step 1:
Step 2:
Step 3:
what is the molecularity of step 3?
2A + B →C
C+D→ E
E → F
A) unimolecular
E) the molecularity cannot be determined
B) bimolecular
C) termolecular
D) quadmolecular
12. Which one of the following statements about chemical equilibrium is correct?
A. At equilibrium, the forward reaction rate equals the reverse reaction rate.
B. At equilibrium, the reactant and the product concentrations show no change with time.
C. At equilibrium, the reactant and product concentrations are constant.
D. At equilibrium the reaction is at the lowest energy condition.
E. All are correct
13. The mechanism for the endothermic (AH = + ) reaction [2A →D + F] is as follows:
Step 1:
Step 2:
Step 3:
Which species is the catalyst?
A + A → B
ki = 2.0 x 10-1 (Ms)
k2 = 8.0 x 104 (Ms)
k3 = 4.0 x 103 s-1
C+B→ D + E
E → F + C
%3D
B) C
C) D
D) E E) there is no catalyst
14. For the reaction in the previous problem which step is "rate determining"?
A) steps1 and 2
B) step 1
C) step 2
D) step 3
15. The mechanism for the endothermic (AH =+) reaction [2A D + F] is as follows:
Step 1:
Step 2:
Which species is the intermediate?
A) A
A + B → C + D Fast
C → 2E + B
Slow
B) B
C) C
D) D
E) E
16. For which one of the following reactions will Kc= Kp?
%3D
A) CO(g) + 2H,(g) = CH;OH(g)
B) 2FEO(s) + O2(g) =2FEO2(s)
C) 203(g) = 30,(g)
D) COCI,(g) = CO(g)+Cl,(g)
E) SO2(g) + H20(liq) = H2SO3(g)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2686ce4e-2003-46f0-985a-c3ddac376cf0%2Fac820a76-4f84-4f05-ae83-b9a8aae368b9%2Ftsmad1f.jpeg&w=3840&q=75)
Transcribed Image Text:a.
10. A catalyst accelerates a reaction because
A. it removes energy from the reactants.
B. it lowers the activation energy for the reaction.
C. it increases the number of collisions between molecules.
D. it increases the temperature of the molecules in the reaction.
E. it supplies energy to reactant molecules.
11. The mechanism for the endothermic (AH = + ) reaction [2A +C → D + F] is as follows:
Step 1:
Step 2:
Step 3:
what is the molecularity of step 3?
2A + B →C
C+D→ E
E → F
A) unimolecular
E) the molecularity cannot be determined
B) bimolecular
C) termolecular
D) quadmolecular
12. Which one of the following statements about chemical equilibrium is correct?
A. At equilibrium, the forward reaction rate equals the reverse reaction rate.
B. At equilibrium, the reactant and the product concentrations show no change with time.
C. At equilibrium, the reactant and product concentrations are constant.
D. At equilibrium the reaction is at the lowest energy condition.
E. All are correct
13. The mechanism for the endothermic (AH = + ) reaction [2A →D + F] is as follows:
Step 1:
Step 2:
Step 3:
Which species is the catalyst?
A + A → B
ki = 2.0 x 10-1 (Ms)
k2 = 8.0 x 104 (Ms)
k3 = 4.0 x 103 s-1
C+B→ D + E
E → F + C
%3D
B) C
C) D
D) E E) there is no catalyst
14. For the reaction in the previous problem which step is "rate determining"?
A) steps1 and 2
B) step 1
C) step 2
D) step 3
15. The mechanism for the endothermic (AH =+) reaction [2A D + F] is as follows:
Step 1:
Step 2:
Which species is the intermediate?
A) A
A + B → C + D Fast
C → 2E + B
Slow
B) B
C) C
D) D
E) E
16. For which one of the following reactions will Kc= Kp?
%3D
A) CO(g) + 2H,(g) = CH;OH(g)
B) 2FEO(s) + O2(g) =2FEO2(s)
C) 203(g) = 30,(g)
D) COCI,(g) = CO(g)+Cl,(g)
E) SO2(g) + H20(liq) = H2SO3(g)
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