Consider a hypothetical chemical reaction: A+B C+D (In this equation A, B, C and D stand for some unknown chemical formulas.) Here is an energy diagram for the reaction: 400 300- energy 200 (k]/mol) C + D A + B 100 reaction coordinate

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Chapter6: Thermochemisty
Section: Chapter Questions
Problem 6.132QP
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Consider a hypothetical chemical reaction:
A+B C+D
(In this equation A, B, C and D stand for some unknown chemical formulas.)
Here is an energy diagram for the reaction:
400
300+
energy
200 -
(k]/mol)
C +D
A +B
100 +
reaction coordinate
Use the energy diagram to answer these questions.
| kJ/mol
What is the heat of reaction?
Exothermic
Endothermic
Is the reaction exothermic or endothermic?
Neither
it's kJ/mol
Can you determine the activation energy?
No.
Yes, it's kJ/mol
Can you determine the activation energy of the reverse reaction?
Explanation
Check
© 2021 McGraw-Hill Education. All Rights Reserved.
Transcribed Image Text:Consider a hypothetical chemical reaction: A+B C+D (In this equation A, B, C and D stand for some unknown chemical formulas.) Here is an energy diagram for the reaction: 400 300+ energy 200 - (k]/mol) C +D A +B 100 + reaction coordinate Use the energy diagram to answer these questions. | kJ/mol What is the heat of reaction? Exothermic Endothermic Is the reaction exothermic or endothermic? Neither it's kJ/mol Can you determine the activation energy? No. Yes, it's kJ/mol Can you determine the activation energy of the reverse reaction? Explanation Check © 2021 McGraw-Hill Education. All Rights Reserved.
400
300-
energy
200
(kJ/mol)
C+ D
A + B
100
0.
reaction coordinate
Use the energy diagram to answer these questions.
What is the heat of reaction?
kJ/mol
Exothermic
Is the reaction exothermic or endothermic?
Endothermic
Neither
Yes, it's kJ/mol
Can you determine the activation energy?
No.
Can you determine the activation energy of the reverse reaction?
Yes, it's kJ/mol
C+D A+ B
No.
Explanation
Check
2021 McGraw-Hill Education. All Rights Reserved.
Transcribed Image Text:400 300- energy 200 (kJ/mol) C+ D A + B 100 0. reaction coordinate Use the energy diagram to answer these questions. What is the heat of reaction? kJ/mol Exothermic Is the reaction exothermic or endothermic? Endothermic Neither Yes, it's kJ/mol Can you determine the activation energy? No. Can you determine the activation energy of the reverse reaction? Yes, it's kJ/mol C+D A+ B No. Explanation Check 2021 McGraw-Hill Education. All Rights Reserved.
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