Consider the reaction of copper(I) oxide with carbon, which is used in a step during the extraction of copper metal from chalcocite: Cu₂0 (s) + C (s) → 2Cu (s) + CO (g) (a) Without doing any calculation, predict the sign of the entropy change for this reaction, why? (b) Using given values for AH rxn, AS rxn,, solve for AG rxn at 25.0 °C. AH°rxn +58.1 kJ/mol AS rxn = +165.3 J/mol K (c) Is this reaction spontaneous at 25.0 °C? If so, find the temperature at which the reaction is no longer spontaneous. If not, find the temperature above which the reaction is spontaneous. >-(Assume that the values of AH°rxn and AS rxn do not change appreciably with temperature).
Consider the reaction of copper(I) oxide with carbon, which is used in a step during the extraction of copper metal from chalcocite: Cu₂0 (s) + C (s) → 2Cu (s) + CO (g) (a) Without doing any calculation, predict the sign of the entropy change for this reaction, why? (b) Using given values for AH rxn, AS rxn,, solve for AG rxn at 25.0 °C. AH°rxn +58.1 kJ/mol AS rxn = +165.3 J/mol K (c) Is this reaction spontaneous at 25.0 °C? If so, find the temperature at which the reaction is no longer spontaneous. If not, find the temperature above which the reaction is spontaneous. >-(Assume that the values of AH°rxn and AS rxn do not change appreciably with temperature).
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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Answer all three of the questions in the picture
![Consider the reaction of copper(I) oxide with carbon, which is used in a step during the extraction
of copper metal from chalcocite:
Cu₂O (s) + C (s) → 2Cu (s) + CO (g)
(a) Without doing any calculation, predict the sign of the entropy change for this reaction, why?
(b) Using given values for AH°rxn, AS rxn,, solve for AGºrxn at 25.0 °C.
AS rxn=+165.3 J/mol K
+58.1 kJ/mol
ΔΗ
AHOrxn
(c) Is this reaction spontaneous at 25.0 °C? If so, find the temperature at which the reaction is no
longer spontaneous. If not, find the temperature above which the reaction is spontaneous.
(Assume that the values of AH°rxn and AS rxn do not change appreciably with temperature).](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fcc5b720f-239c-44d9-89e7-8b1255baa0d1%2F4ba581cf-d520-4959-9eef-ba4ce8755004%2Fk1tgn6_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Consider the reaction of copper(I) oxide with carbon, which is used in a step during the extraction
of copper metal from chalcocite:
Cu₂O (s) + C (s) → 2Cu (s) + CO (g)
(a) Without doing any calculation, predict the sign of the entropy change for this reaction, why?
(b) Using given values for AH°rxn, AS rxn,, solve for AGºrxn at 25.0 °C.
AS rxn=+165.3 J/mol K
+58.1 kJ/mol
ΔΗ
AHOrxn
(c) Is this reaction spontaneous at 25.0 °C? If so, find the temperature at which the reaction is no
longer spontaneous. If not, find the temperature above which the reaction is spontaneous.
(Assume that the values of AH°rxn and AS rxn do not change appreciably with temperature).
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