Ita Srxn Substance HCOOH(aq) S (J-mol K-1) . 92.0 HCOOH(1) 128.95 H2C2O4(s) 115.6 H2C2O4(aq) 45.61 CO(g) 197.6 CO₂(9) 213.6 CO,(aq) 117.6 (a) Calculate the entropy change (in J/K) for this reaction. (Assume standard thermodynamic conditions of 1.00 atm and 298.15 K. Use the given thermodynamic data.) J/K Discuss the sign of AS. The entropy change of the reaction is becomes ordered. indicating that molecular disorder is or the system (b) How do plants carry out reactions that increase the number of carbons in a sugar, given the changes in entropy for reactions like this? Plants carry out this type of reaction in conjunction with other reactions that entropy change of the universe is entropy. As long as the overall ' the coupled reactions can proceed spontaneously. Previous Next

Ita Srxn Substance HCOOH(aq) S (J-mol K-1) . 92.0 HCOOH(1) 128.95 H2C2O4(s) 115.6 H2C2O4(aq) 45.61 CO(g) 197.6 CO₂(9) 213.6 CO,(aq) 117.6 (a) Calculate the entropy change (in J/K) for this reaction. (Assume standard thermodynamic conditions of 1.00 atm and 298.15 K. Use the given thermodynamic data.) J/K Discuss the sign of AS. The entropy change of the reaction is becomes ordered. indicating that molecular disorder is or the system (b) How do plants carry out reactions that increase the number of carbons in a sugar, given the changes in entropy for reactions like this? Plants carry out this type of reaction in conjunction with other reactions that entropy change of the universe is entropy. As long as the overall ' the coupled reactions can proceed spontaneously. Previous Next

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter17: Spontaneity, Entropy, And Free Energy

Section: Chapter Questions

Problem 1ALQ: For the process A(l) A(g), which direction is favored by changes in energy probability? Positional...

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For the process A(l) A(g), which direction is favored by changes in energy probability? Positional probability? Explain your answers. If you wanted to favor the process as written, would you raise or lower the temperature of the system? Explain.
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Another step in the metabolism of glucose, which occurs after the formation of glucose6-phosphate, is the conversion of fructose6-phosphate to fructose1,6-bisphosphate(bis meanstwo): Fructose6-phosphate(aq) + H2PO4(aq) fructose l,6-bisphosphate(aq) + H2O() + H+(aq) (a) This reaction has a Gibbs free energy change of +16.7 kJ/mol of fructose6-phosphate. Is it endergonic or exergonic? (b) Write the equation for the formation of 1 mol ADP fromATR for which rG = 30.5 kJ/mol. (c) Couple these two reactions to get an exergonic process;write its overall chemical equation, and calculate theGibbs free energy change.