The change in entropy, Δ?∘rxnΔ, is related to the the change in the number of moles of gas molecules, Δ?gas. Determine the change in the moles of gas for each of the reactions and decide if the entropy increases, decreases, or has little or no change. A. KO2(s) ⟶ K(s)+O2(g) Δ?gas= mol The entropy, Δ?∘rxn, decreases. has little or no change. increases. B. H2O2(l) ⟶ H2(g)+O2(g) Δ?gas=
The change in entropy, Δ?∘rxnΔ, is related to the the change in the number of moles of gas molecules, Δ?gas. Determine the change in the moles of gas for each of the reactions and decide if the entropy increases, decreases, or has little or no change. A. KO2(s) ⟶ K(s)+O2(g) Δ?gas= mol The entropy, Δ?∘rxn, decreases. has little or no change. increases. B. H2O2(l) ⟶ H2(g)+O2(g) Δ?gas=
Chemistry for Engineering Students
4th Edition
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Lawrence S. Brown, Tom Holme
Chapter10: Entropy And The Second Law Of Thermodynamics
Section: Chapter Questions
Problem 10.74PAE
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The change in entropy, Δ?∘rxnΔ, is related to the the change in the number of moles of gas molecules, Δ?gas. Determine the change in the moles of gas for each of the reactions and decide if the entropy increases, decreases, or has little or no change.
A. KO2(s) ⟶ K(s)+O2(g)
Δ?gas=
mol
The entropy, Δ?∘rxn,
decreases.
has little or no change.
increases.
B. H2O2(l) ⟶ H2(g)+O2(g)
Δ?gas=
mol
The entropy, Δ?∘rxn,
decreases.
has little or no change.
increases.
C. C2H2(g)+3O2(g) ⟶ 2CO2(g)+2H2O(l)
Δ?gas=
mol
The entropy, Δ?∘rxn,
has little or no change.
decreases.
increases.
D. 2NH3(g) ⟶ N2(g)+3H2(g)
Δ?gas=
mol
The entropy, Δ?∘rxn
decreases.
has little or no change.
increases.
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