Interpretation:
The standard free energy (
Concept Introduction:
Free energy
Standard free energy (Gibbs free energy) is the term that is used to explain the total energy content in a thermodynamic system that can be converted into work. The free energy is represented by the letter
Want to see the full answer?
Check out a sample textbook solutionChapter 17 Solutions
Chemistry
- Calculate E°, G°, and K at 25°C for the reaction 3Mn2+(aq)+2MnO4(aq)+2H2O5MnO2(s)+4H+(aq)arrow_forwardCalculate E°, G°, and K at 25°C for the reaction 3MnO4(aq)+4H+(aq)+Cl2(g)2Mn2+(aq)+2ClO3(aq)+2H2Oarrow_forwardCalculate K at 25°C for each of the reactions referred to in Question 32. Assume smallest whole-number coefficients.arrow_forward
- The standard potential, E, for the reaction of Zn(s) and Cl2(g) is +2.12 V. What is the standard free energy change, rG, for the reaction?arrow_forwardCalculate the equilibrium constant at 25 C for each of the following reactions from the value G given. (a) I2(s)+Cl2(l)2ICl(g)G=10.88kJ (b) H2(g)+I2(s)2HI(g)G=3.4kJ (c) CS2(g)+3Cl2(g)CCl4(g)+S2Cl2(g)G=39kJ (d) 2SO2(g)+O2(g)2SO3(g)G=141.82kJ (e) CS2(g)CS2(l)G=1.88kJarrow_forwardThe overall reaction and equilibrium constant value for a hydrogen-oxygen fuel cell at 298 K is 2H2(g)+O2(g)2H2O(l)K=1.281083 a. Calculate and G at 298 K for the fuel cell reaction. b. Predict the signs of H and S for the fuel cell reaction. c. As temperature increases, does the maximum amount of work obtained from the fuel cell reaction increase, decrease, or remain the same? Explain.arrow_forward
- Without doing any calculations, predict the sign of rS for the following reaction: Zn(s) + 2 HCl(aq) ZnCl2(aq) + H2(g) (a) rS 0 (b) rS = 0 (c) rS 0arrow_forwardConsider the following reaction at 298K.Cd2+ (aq) + 2 Ag (s) Cd (s) + 2 Ag+ (aq)Which of the following statements are correct?Choose all that apply. K < 1 Eocell < 0 The reaction is product-favored. delta Go < 0 n = 4 mol electronsarrow_forwardConsider the following reaction at 298K.Cr3+ (aq) + Cu+ (aq) Cr2+ (aq) + Cu2+ (aq) Which of the following statements are correct?Choose all that apply. n = 1 mol electrons The reaction is reactant-favored. Eocell > 0 ΔGo > 0 K > 1arrow_forward
- What is Keq at 298 K for the spontaneous reaction between the following?Pb+2 (aq) + 2e-------> Pb (s) Eo = -0.13 VMn+2 (aq) + 2e-------> Mn (s) Eo = -1.18 Varrow_forwardCalculate the equilibrium constant if the change in the standard free energy for a reaction is -30.90 kJ/mol. Assume T = 298 K. 3.5e+05 2.0e+05 The answer is not shown. 9.7e+04 2.6e+05arrow_forwardPredict the sign of delta S and then calculate delta S for the following reaction. 2CH3OH(g)+3O2(g)---> 2CO2(g)+4H2O(g)arrow_forward
- Chemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage LearningChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning
- Chemistry by OpenStax (2015-05-04)ChemistryISBN:9781938168390Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark BlaserPublisher:OpenStaxChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningPrinciples of Modern ChemistryChemistryISBN:9781305079113Author:David W. Oxtoby, H. Pat Gillis, Laurie J. ButlerPublisher:Cengage Learning