1. Consider these three reactions as the elementary steps in the mechanism for a chemical reaction. (i) H2(g) + NO(g) → H20(g) + N(g) (ii) N(g) + NO(g) → N2(g) + O(g) (iii) O(g) + H2(g)→ H20(g) Ea = 436 kJ AH = -491 kJ Ea = 625 kJ AH = -312 kJ Ea = 1690 kJ AH = +131 kJ a. What is the AH for the overall reaction? Overall, is it endothermic or exothermic? b. Draw the potential energy diagram for the reaction. Assume the potential energy of the reactants was 1400 kJ 2600 2400 2200 2000 1800 1600 1400 1200 1000 800 600 400 200 Reaction Progress c. What is E, for the overall reaction? You must calculate this from the potential energy diagram. Potential Energy (kJ)
1. Consider these three reactions as the elementary steps in the mechanism for a chemical reaction. (i) H2(g) + NO(g) → H20(g) + N(g) (ii) N(g) + NO(g) → N2(g) + O(g) (iii) O(g) + H2(g)→ H20(g) Ea = 436 kJ AH = -491 kJ Ea = 625 kJ AH = -312 kJ Ea = 1690 kJ AH = +131 kJ a. What is the AH for the overall reaction? Overall, is it endothermic or exothermic? b. Draw the potential energy diagram for the reaction. Assume the potential energy of the reactants was 1400 kJ 2600 2400 2200 2000 1800 1600 1400 1200 1000 800 600 400 200 Reaction Progress c. What is E, for the overall reaction? You must calculate this from the potential energy diagram. Potential Energy (kJ)
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter11: Chemical Kinetics: Rates Of Reactions
Section11.7: Reaction Mechanisms
Problem 11.12E
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![1. Consider these three reactions as the elementary steps in the mechanism for a chemical reaction.
(i) H2(g) + NO(g) → H20(g) + N(g)
(ii) N(g) + NO(g) → N2(g) + O(g)
(iii) O(g) + H2(g) → H20(g)
Ea = 436 kJ
AH = -491 kJ
Ea = 625 kJ
AH = -312 kJ
Ea = 1690 kJ
AH = +131 kJ
a. What is the AH for the overall reaction? Overall, is it endothermic or exothermic?
b. Draw the potential energy diagram for the reaction. Assume the potential energy of the reactants
was 1400 kJ1)
2600
2400
2200
2000
1800
1600
1400
1200
1000
800
600
400
200
Reaction Progress
c. What is Ea for the overall reaction? You must calculate this from the potential energy diagram.
Potential Energy (kJ)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2c422ca7-b224-478c-b553-0ce24a8de069%2F7e8f47a7-119d-4a50-997a-ea606eeeb0ee%2Fuj8mznc_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1. Consider these three reactions as the elementary steps in the mechanism for a chemical reaction.
(i) H2(g) + NO(g) → H20(g) + N(g)
(ii) N(g) + NO(g) → N2(g) + O(g)
(iii) O(g) + H2(g) → H20(g)
Ea = 436 kJ
AH = -491 kJ
Ea = 625 kJ
AH = -312 kJ
Ea = 1690 kJ
AH = +131 kJ
a. What is the AH for the overall reaction? Overall, is it endothermic or exothermic?
b. Draw the potential energy diagram for the reaction. Assume the potential energy of the reactants
was 1400 kJ1)
2600
2400
2200
2000
1800
1600
1400
1200
1000
800
600
400
200
Reaction Progress
c. What is Ea for the overall reaction? You must calculate this from the potential energy diagram.
Potential Energy (kJ)
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