Potassium chlorate, a common oxidizing agent in fireworks and matchheads, undergoes a solid-state disproportionation reaction when heated KC1O; (s) → KCI0, (s) + KCI (s) Given the standard entropy and standard heat of formation for the substances involved, find the standard free energy at 25 °C.

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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Potassium chlorate, a common oxidizing agent in fireworks and matchheads, undergoes a
solid-state disproportionation reaction when heated
KC1O3 (s) → KCLO, (s) + KCI (s)
Given the standard entropy and standard heat of formation for the substances involved, find
the standard free energy at 25 °C.
AHº, KJ/mole
- 397.7
- 432.8
– 436.7
AS, J/mole-K
KCIO3
143.1
KCIO4
151.0
KCI
82.6
Transcribed Image Text:Potassium chlorate, a common oxidizing agent in fireworks and matchheads, undergoes a solid-state disproportionation reaction when heated KC1O3 (s) → KCLO, (s) + KCI (s) Given the standard entropy and standard heat of formation for the substances involved, find the standard free energy at 25 °C. AHº, KJ/mole - 397.7 - 432.8 – 436.7 AS, J/mole-K KCIO3 143.1 KCIO4 151.0 KCI 82.6
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