Question

Aluminum forms a layer of aluminum oxide when exposed to air which protects the bulk metal from further corrosion. 4Al(s) + 3O2(g) → 2Al2O3(s) Using the thermodynamic data provided below, calculate ΔS° for this reaction. S°(J/K·mol) Al(s) 28.3 O2(g) 205.0 Al2O3(s) 50.99 (You must show your work to get credit for this question) A) 182.3 J/K·mol B) 131.5 J/K·mol C) –182.3 J/K·mol D) –626.2 J/K·mol E) –802.9 J/K·mol

Name: aluminum forms a layer of aluminum oxide when exposed to air which protects the bulk metal from further corrosion 4als 3o2g 2al2o3s using the thermodynamic data provided below calculate s for this rea
Uploaded: 2023-05-08T12:49:34-08:00
Duration: 1 min 53 s
Channel: Dominique Jan Tan
Description: aluminum forms a layer of aluminum oxide when exposed to air which protects the bulk metal from further corrosion 4als 3o2g 2al2o3s using the thermodynamic data provided below calculate s for this rea

          Aluminum forms a layer of aluminum oxide when exposed to air which protects the bulk
metal from further corrosion.
4Al(s) + 3O2(g) → 2Al2O3(s)
Using the thermodynamic data provided below, calculate ΔS° for this reaction.
S°(J/K·mol)
Al(s) 28.3
O2(g) 205.0
Al2O3(s) 50.99
(You must show your work to get credit for this question)
A) 182.3 J/K·mol
B) 131.5 J/K·mol
C) –182.3 J/K·mol
D) –626.2 J/K·mol
E) –802.9 J/K·mol

Added by Tabarek A.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Dominique Jan Tan

05/08/2023

Step 1

For the reactants, we have: 4 moles of Al(s) with S° = 28.3 J/K·mol 3 moles of O2(g) with S° = 205.0 J/K·mol For the products, we have: Show more…

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Aluminum forms a layer of aluminum oxide when exposed to air which protects the bulk metal from further corrosion. 4Al(s) + 3O2(g) → 2Al2O3(s) Using the thermodynamic data provided below, calculate ΔS° for this reaction. S°(J/K·mol) Al(s) 28.3 O2(g) 205.0 Al2O3(s) 50.99 (You must show your work to get credit for this question) A) 182.3 J/K·mol B) 131.5 J/K·mol C) –182.3 J/K·mol D) –626.2 J/K·mol E) –802.9 J/K·mol