K > - B W Chapter... G kJ N. webassign.net F (b) CaCO3(s)=Ca0(s) + CO₂(g); AH° = +179.2 kJ, AS° = +160.2 J/K AGO K Supporting Materials E L C Calculate the change in Gibbs free energy at standard conditions (TSS) and the equilibrium constant for each of the following reactions. (a) CH₂(g) + H₂O(g) = CO(g) + 3 H₂(g); AH° = +205.9 kJ, AS° = +214.7 J/K AGO kJ K G a

K > - B W Chapter... G kJ N. webassign.net F (b) CaCO3(s)=Ca0(s) + CO₂(g); AH° = +179.2 kJ, AS° = +160.2 J/K AGO K Supporting Materials E L C Calculate the change in Gibbs free energy at standard conditions (TSS) and the equilibrium constant for each of the following reactions. (a) CH₂(g) + H₂O(g) = CO(g) + 3 H₂(g); AH° = +205.9 kJ, AS° = +214.7 J/K AGO kJ K G a

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

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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Calculate the entropy change in surroundings when 1.00 mol of H:0 (1) is formed under standard conditions, A:H = -286 kJmol1. Industrially, methanol is synthesized using the reaction Co(e) + 2 H2(g) =CH:OH(g) Calculate the equilibrium constant at 298 K. AGP CO(g) = -137.2 kJ/mol; AGP H: (g)= 0; AGP CH:OH(g) = -162 kJ/mol
Consider the following reaction, where AG =-625 J at 300 C, 2 XOG) + Oz(g) 2 X02(g) a) Determine K, at 300 °C. b) Calculate AG° at 300 °C when P(XO) = 8.0x10-4 atm, P(O2) = 0.072 atm, and P(XO2) = 9.0 atm. %3D c)Is the reaction spontaneous when carried out under the conditions in (b)? How do you know? (no points for guessing) d) At 0.00 °C, AG" = 17000 J/mol. Calculate AH and AS.
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Make a non-spontaneous process spontaneous A process that is nonspontaneous can be made spontaneous by coupling it with another process tha is highly spontaneous. The coupling of nonspontaneous reactions with highly spontaneous ones is important in biological system. The oxidization of glucose, for example, is highly spontaneous: C6H12O6(s) + 60₂(g) → 6 CO₂(g) + 6 H₂O(1) Spontaneous reactions such as this ultimately drive the nonspontaneous reactions necessary to sustain life. Can you use Gibbs free energy, enthalpy, and entropy to argue this reaction is highly spontaneous?
(Q70) Using the tabulated values from the text (located in Appendix G, beginning at p. 1211) calculate (and report in kJ) the standard Gibbs free energy (AG°rxn) for the net reaction that occurs during photosynthesis: 6 H2O (1) + 6 CO2 (g) --> C6H12O6 (s) + 6 O2 (g). The AG°; for glucose (C6H1206) is -1273.3 kJ/mol.
M req For the reaction E 20 H₂(g) + Cl₂(g) → 2HCl(g) AH = -185 kJ and AS = 20.0 J/K The equilibrium constant for this reaction at 261.0 K is Assume that ΔΗ° and AS are independent of temperature. Submit Answer SA 4 000 000 R F Show Hint DE LO % 5 Retry Entire Group [Review Topics] [References] Use the References to access important values if needed for this question. T G Cengage Learning Cengage Technical Support < C 6 9 more group attempts remaining Y H & 7 U 8 J I 9 K 0 0 P Previous Next Email Instructor Save a +
Combustion of glucose (CH,0 is the main source of energy for animal cells: CH,0,) + 60,(g) -- 6CO,(g) + 6H,o) AG,(37 C) =- 2872. kI One of the most important uses to which this energy is put is the assembly of proteins out of amino acid building blocks. The Gibbs free energy of formation of one peptide bond, joining one amino acid to another, is 21 k/mol. Suppose some cells are assembling a certain protein made of 84 amino acids. (Note that the number of peptide bonds in the protein will be one less than the number of amino acids.) Calculate the minimum mass of glucose that must be burned to assemble 400. umol of this protein. Round your answer to 2 significant digits.
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