In the process of respiration, glucose is oxidized completely. In fermentation, O2 is absent, and glucose is broken down to ethanol and CO2. Ethanol is oxidized to CO2 and H2O. Respiration: C6H12O6(s) + 6O2(g) → 6CO2(g) + 6H2O(l) Fermentation: C6H12O6(s) → 2C2H5OH(l) + 2CO2(g) Ethanol oxidation: C2H5OH(l) + 3O2(g) → 3CO2(g) + 2H2O(l) (a) Calculate ΔG rxn for respiration of 1.00 g of glucose. (b) Calculate ΔG rxn for fermentation of 1.00 g of glucose. (c) Calculate ΔG rxn for oxidation of the ethanol from part (b).
In the process of respiration, glucose is oxidized completely. In fermentation, O2 is absent, and glucose is broken down to ethanol and CO2. Ethanol is oxidized to CO2 and H2O. Respiration: C6H12O6(s) + 6O2(g) → 6CO2(g) + 6H2O(l) Fermentation: C6H12O6(s) → 2C2H5OH(l) + 2CO2(g) Ethanol oxidation: C2H5OH(l) + 3O2(g) → 3CO2(g) + 2H2O(l) (a) Calculate ΔG rxn for respiration of 1.00 g of glucose. (b) Calculate ΔG rxn for fermentation of 1.00 g of glucose. (c) Calculate ΔG rxn for oxidation of the ethanol from part (b).
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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In the process of respiration, glucose is oxidized completely. In fermentation, O2 is absent, and glucose is broken down to ethanol and CO2. Ethanol is oxidized to CO2 and H2O.
Respiration:
C6H12O6(s) + 6O2(g) → 6CO2(g) + 6H2O(l)
Fermentation:
C6H12O6(s) → 2C2H5OH(l) + 2CO2(g)
Ethanol oxidation:
C2H5OH(l) + 3O2(g) → 3CO2(g) + 2H2O(l)
(a) Calculate ΔG rxn
for respiration of 1.00 g of glucose.
(b) Calculate ΔG rxn
for fermentation of 1.00 g of glucose.
(c) Calculate ΔG rxn
for oxidation of the ethanol from part (b).
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