Potassium chlorate (one of the common oxidizing agents in explosives, fireworks, and matchheads) undergoes a pretty awesome solid-state redox reaction when heated. 4KClO3(s) → 3KClO4(s) + KCl(s) Use the following table and equation to calculate the enthalpy, entropy, and free energy of the reaction at 298 K. ΔHf° (kJ/mol) S° (J/mol∙K) KCl(s) -436.7 82.59 KClO3(s) -397.7 143.1 KClO4(s) -432.75 151.0 ΔG° = ΔH° - T∙ΔS° ΔH° = The reaction is: (exothermic/endothermic) ΔS° = The reaction: (increases/decreases) ΔG° = The reaction is: (non-spontaneousspontaneous)
Potassium chlorate (one of the common oxidizing agents in explosives, fireworks, and matchheads) undergoes a pretty awesome solid-state redox reaction when heated. 4KClO3(s) → 3KClO4(s) + KCl(s) Use the following table and equation to calculate the enthalpy, entropy, and free energy of the reaction at 298 K. ΔHf° (kJ/mol) S° (J/mol∙K) KCl(s) -436.7 82.59 KClO3(s) -397.7 143.1 KClO4(s) -432.75 151.0 ΔG° = ΔH° - T∙ΔS° ΔH° = The reaction is: (exothermic/endothermic) ΔS° = The reaction: (increases/decreases) ΔG° = The reaction is: (non-spontaneousspontaneous)
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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Potassium chlorate (one of the common oxidizing agents in explosives, fireworks, and matchheads) undergoes a pretty awesome solid-state
4KClO3(s) → 3KClO4(s) + KCl(s)
Use the following table and equation to calculate the enthalpy, entropy, and free energy of the reaction at 298 K.
|
|
ΔHf° (kJ/mol) |
S° (J/mol∙K) |
|
KCl(s) |
-436.7 |
82.59 |
|
KClO3(s) |
-397.7 |
143.1 |
|
KClO4(s) |
-432.75 |
151.0 |
ΔG° = ΔH° - T∙ΔS°
ΔH° =
The reaction is: (exothermic/endothermic)
ΔS° =
The reaction: (increases/decreases)
ΔG° =
The reaction is: (non-spontaneousspontaneous)
*These are all standard molar values and the units should include "/mol".
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