Which of the following represents an exothermic chemical reaction? O CO2 (g) breaking into C (s, graphite) and O2 (g), AH = 393.5 kJ/mol %3D O CaCl2 (s) dissolving in water, AH = -81.3 kJ/mol O NHẠNO3 (s) dissolving in water, AH = 25.7 kJ/mol %3D O None of these Water freezing, AH = -6.0 kJ/mol %3D
Which of the following represents an exothermic chemical reaction? O CO2 (g) breaking into C (s, graphite) and O2 (g), AH = 393.5 kJ/mol %3D O CaCl2 (s) dissolving in water, AH = -81.3 kJ/mol O NHẠNO3 (s) dissolving in water, AH = 25.7 kJ/mol %3D O None of these Water freezing, AH = -6.0 kJ/mol %3D
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter7: Chemical Energy
Section: Chapter Questions
Problem 2RQ: Consider the following potential energy diagrams for two different reactions. Which plot represents...
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![Which of the following represents an exothermic chemical reaction?
O CO2 (g) breaking into C (s, graphite) and O2 (g), AH = 393.5 kJ/mol
%3D
O CaCl2 (s) dissolving in water, AH = -81.3 kJ/mol
O NHẠNO3 (s) dissolving in water, AH = 25.7 kJ/mol
%3D
O None of these
Water freezing, AH = -6.0 kJ/mol
%3D](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F565fb7a0-cd66-4015-a690-51da8dc2eb4a%2F55465faa-3035-45a7-9553-97eeca9c8fe2%2Fearf9g7_processed.png&w=3840&q=75)
Transcribed Image Text:Which of the following represents an exothermic chemical reaction?
O CO2 (g) breaking into C (s, graphite) and O2 (g), AH = 393.5 kJ/mol
%3D
O CaCl2 (s) dissolving in water, AH = -81.3 kJ/mol
O NHẠNO3 (s) dissolving in water, AH = 25.7 kJ/mol
%3D
O None of these
Water freezing, AH = -6.0 kJ/mol
%3D
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