Ch.18 - ElectrochemistrySee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: Consider the non–aqueous cell reaction 2 K(s) + Fe2+ (aq)  →   2 K+ (aq) + Fe(s) for which  E°cell = 1.49 V at 298 K. ΔG° at this temperature is   A)        +287.6  kJ                    D)        –143.7 kJ B)        –287.6 kJ                     E)         None of these choices is correct. C)        +143.7 kJ

Problem

Consider the non–aqueous cell reaction

2 K(s) + Fe2+ (aq)  →   2 K+ (aq) + Fe(s)

for which  E°cell = 1.49 V at 298 K. ΔG° at this temperature is

 

A)        +287.6  kJ                    D)        –143.7 kJ

B)        –287.6 kJ                     E)         None of these choices is correct.

C)        +143.7 kJ