Choose all of the statements from below which correctly describe issues pertaining to the relationship between the emf of a reaction and its Gibbs free energy change. The Gibbs free energy change and emf values of a reaction have opposite algebraic signs (+ vs. -). Faraday's constant must be used in order to interconvert a Gibbs free energy change and a reaction emf. A spontaneous reaction has a negative Gibbs free energy change and a positive emf. A Gibbs free energy change involves moles of substances whereas an emf involves coulombs of electrons. The Gibbs free energy change and emf values of a reaction have the same algebraic signs (+ or -). Calculate the standard Gibbs free energy changes at 25 oC for each of the reactions shown below using the Eo values given. Select whether each of these reactions is nonspontaneous, at equilibrium, or spontaneous under standard conditions. (a) 2 Ag+(aq) + 1 Ba(s) 2 Ag(s) + 1 Ba2+(aq) Eo = 3.699 V Go = kJ/mol nonspontaneousat equilibrium spontaneous (b) 1 Fe3+(aq) + 1 Co2+(aq) 1 Fe2+(aq) + 1 Co3+(aq) Eo = -1.071 V Go = kJ/mol nonspontaneousat equilibrium spontaneous (c) 2 Cr3+(aq) + 6 F-(aq) 2 Cr(s) + 3 F2(g) Eo = -3.610 V Go = kJ/mol nonspontaneousat equilibrium spontaneous (d) 1 I2(s) + 1 Sn(s) 2 I-(aq) + 1 Sn2+(aq) Eo = 0.672 V Go = kJ/mol nonspontaneousat equilibrium spontaneous
Choose all of the statements from below which correctly describe issues pertaining to the relationship between the emf of a reaction and its Gibbs free energy change. The Gibbs free energy change and emf values of a reaction have opposite algebraic signs (+ vs. -). Faraday's constant must be used in order to interconvert a Gibbs free energy change and a reaction emf. A spontaneous reaction has a negative Gibbs free energy change and a positive emf. A Gibbs free energy change involves moles of substances whereas an emf involves coulombs of electrons. The Gibbs free energy change and emf values of a reaction have the same algebraic signs (+ or -). Calculate the standard Gibbs free energy changes at 25 oC for each of the reactions shown below using the Eo values given. Select whether each of these reactions is nonspontaneous, at equilibrium, or spontaneous under standard conditions. (a) 2 Ag+(aq) + 1 Ba(s) 2 Ag(s) + 1 Ba2+(aq) Eo = 3.699 V Go = kJ/mol nonspontaneousat equilibrium spontaneous (b) 1 Fe3+(aq) + 1 Co2+(aq) 1 Fe2+(aq) + 1 Co3+(aq) Eo = -1.071 V Go = kJ/mol nonspontaneousat equilibrium spontaneous (c) 2 Cr3+(aq) + 6 F-(aq) 2 Cr(s) + 3 F2(g) Eo = -3.610 V Go = kJ/mol nonspontaneousat equilibrium spontaneous (d) 1 I2(s) + 1 Sn(s) 2 I-(aq) + 1 Sn2+(aq) Eo = 0.672 V Go = kJ/mol nonspontaneousat equilibrium spontaneous
General Chemistry - Standalone book (MindTap Course List)
11th Edition
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Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
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Chapter18: Thermodynamics And Equilibrium
Section: Chapter Questions
Problem 18.21QP
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Question
Choose all of the statements from below which correctly describe issues pertaining to the relationship between the emf of a reaction and its Gibbs free energy change.
The Gibbs free energy change and emf values of a reaction have opposite algebraic signs (+ vs. -).
Faraday's constant must be used in order to interconvert a Gibbs free energy change and a reaction emf.
A spontaneous reaction has a negative Gibbs free energy change and a positive emf.
A Gibbs free energy change involves moles of substances whereas an emf involves coulombs of electrons.
The Gibbs free energy change and emf values of a reaction have the same algebraic signs (+ or -).
Faraday's constant must be used in order to interconvert a Gibbs free energy change and a reaction emf.
A spontaneous reaction has a negative Gibbs free energy change and a positive emf.
A Gibbs free energy change involves moles of substances whereas an emf involves coulombs of electrons.
The Gibbs free energy change and emf values of a reaction have the same algebraic signs (+ or -).
Calculate the standard Gibbs free energy changes at 25 oC for each of the reactions shown below using the Eo values given. Select whether each of these reactions is nonspontaneous, at equilibrium, or spontaneous under standard conditions.
| (a) 2 Ag+(aq) + 1 Ba(s) 2 Ag(s) + 1 Ba2+(aq) | Eo = 3.699 V | Go = kJ/mol |
nonspontaneousat equilibrium spontaneous
| (b) 1 Fe3+(aq) + 1 Co2+(aq) 1 Fe2+(aq) + 1 Co3+(aq) | Eo = -1.071 V | Go = kJ/mol |
nonspontaneousat equilibrium spontaneous
| (c) 2 Cr3+(aq) + 6 F-(aq) 2 Cr(s) + 3 F2(g) | Eo = -3.610 V | Go = kJ/mol |
nonspontaneousat equilibrium spontaneous
| (d) 1 I2(s) + 1 Sn(s) 2 I-(aq) + 1 Sn2+(aq) | Eo = 0.672 V | Go = kJ/mol |
nonspontaneousat equilibrium spontaneous
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