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An inventor proposes using a SHE (standard hydrogen electrode) in a new battery for smartphones that also removes toxic carbon monoxide from the air: Anode: CO2(g) + 2H+(aq)+2e− --> CO(g) + H2O(l) E∘ = −0.53 V Cathode: 2H+(aq) + 2e− --> H2(g) E∘ = 0 A. Determine the standard cell potential and the cell potential under the stated conditions for the electrochemical reactions described here. State whether each is spontaneous or nonspontaneous under each set of conditions at 298.15 K. B. Find the standard Gibbs free energy change and Gibbs free energy change. C. Calculate the entropy change and enthalpy change, using the function of E with regards to T at 298.15 K E (T) = 4.06 x 10 -6 T2 + 9.998 x 10 -3 T1/2

An inventor proposes using a SHE (standard hydrogen electrode) in a new battery for smartphones that also removes toxic carbon monoxide from the air: Anode: CO2(g) + 2H+(aq)+2e− --> CO(g) + H2O(l) E∘ = −0.53 V Cathode: 2H+(aq) + 2e− --> H2(g) E∘ = 0 A. Determine the standard cell potential and the cell potential under the stated conditions for the electrochemical reactions described here. State whether each is spontaneous or nonspontaneous under each set of conditions at 298.15 K. B. Find the standard Gibbs free energy change and Gibbs free energy change. C. Calculate the entropy change and enthalpy change, using the function of E with regards to T at 298.15 K E (T) = 4.06 x 10 -6 T2 + 9.998 x 10 -3 T1/2

General Chemistry - Standalone book (MindTap Course List)
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter19: Electrochemistry
Section: Chapter Questions
Problem 19.153QP: An electrode is prepared by dipping a silver strip into a solution saturated with silver...
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An inventor proposes using a SHE (standard hydrogen electrode) in a new battery for smartphones that also removes toxic carbon monoxide from the air:

Anode:            CO2(g) + 2H+(aq)+2e− --> CO(g) + H2O(l)              E∘ = −0.53 V

Cathode:         2H+(aq) + 2e− -->  H2(g)                                           E∘ = 0

A. Determine the standard cell potential and the cell potential under the stated conditions for the electrochemical reactions described here. State whether each is spontaneous or nonspontaneous under each set of conditions at 298.15 K.
B. Find the standard Gibbs free energy change and Gibbs free energy change.
C. Calculate the entropy change and enthalpy change, using the function of E with regards to T at 298.15 K

E (T) = 4.06 x 10 -6  T2 + 9.998 x 10 -3 T1/2

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