Preparing for your ACS examination in general chemistry
Preparing for your ACS examination in general chemistry
98th Edition
ISBN: 9780970804204
Author: Lucy T Eubanks
Publisher: ACS DIVCHED EXAMINATIONS INST.
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Chapter EN, Problem 29PQ
Interpretation Introduction

Interpretation:

The sign of ΔSrxn of reaction of dissociation of O2 molecule and condition under that this reaction will be spontaneous has to be determined.

Concept Introduction:

The formula that determines spontaneity of the reaction is as follows:

  ΔG=ΔHTΔS

Here,

  ΔG is change in the Gibbs free energy.

  ΔH is change in the enthalpy.

  ΔS is change in entropy.

The table that represents the three state functions is as follows:

ΔHΔSΔGNature of reaction+SpontaneousSpontaneous at low temperature++Spontaneousat high temperature++Non-spontaneous

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