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Chemistry Question

Chemistry Question

Chemistry
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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<Homework #11 Question 5 Gibbs free energy (G) is a measure of the spontaneity of a chemical reaction. It is the chemical potential for a reaction, and is minimized at equilibrium. It is defined as G=H-TS where H is enthalpy, T is temperature, and S is entropy. The chemical reaction that causes iron to corrode in air is given by 4Fe +302 2Fe2O3 in which at 298 K, AH = - 1684 kJ and ASn = -543.7 J/K. N ▼ AGixn= Submit What is the standard Gibbs free energy for this reaction? Assume the commonly used standard reference temperature of 298 K. Express your answer as an integer and include the appropriate units. View Available Hint(s) Part B I A HA Value i O HA 3 Val.. P Pearson S Units What is the Gibbs free energy for this reaction at 3652 K? Assume that AH and AS do not change with temperature. Express your answer to two decimal places and include the appropriate units. ► View Available Hint(s) C B ? T Tita E CHEM 106 Spring 23 ? 5 of 20 Review | Constants I Periodic Table Copyright © 2023 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions | Contact Us |
Transcribed Image Text:<Homework #11 Question 5 Gibbs free energy (G) is a measure of the spontaneity of a chemical reaction. It is the chemical potential for a reaction, and is minimized at equilibrium. It is defined as G=H-TS where H is enthalpy, T is temperature, and S is entropy. The chemical reaction that causes iron to corrode in air is given by 4Fe +302 2Fe2O3 in which at 298 K, AH = - 1684 kJ and ASn = -543.7 J/K. N ▼ AGixn= Submit What is the standard Gibbs free energy for this reaction? Assume the commonly used standard reference temperature of 298 K. Express your answer as an integer and include the appropriate units. View Available Hint(s) Part B I A HA Value i O HA 3 Val.. P Pearson S Units What is the Gibbs free energy for this reaction at 3652 K? Assume that AH and AS do not change with temperature. Express your answer to two decimal places and include the appropriate units. ► View Available Hint(s) C B ? T Tita E CHEM 106 Spring 23 ? 5 of 20 Review | Constants I Periodic Table Copyright © 2023 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions | Contact Us |
Question 5 Gibbs free energy (G) is a measure of the spontaneity of a chemical reaction. It is the chemical potential for a reaction, and is minimized at equilibrium. It is defined as G=H-TS where H is enthalpy, T is temperature, and S is entropy. The chemical reaction that causes iron to corrode in air is given by 4Fe +302→2Fe2O3 in which at 298 K, AH AS = 543.7 J/K. 1684 kJ and I AGrxn = Submit Part C Teq = Submit Provide Feedback Value μA At what temperature Teq do the forward and reverse corrosion reactions occur in equilibrium? Express your answer as an integer and include the appropriate units. ► View Available Hint(s) μA Value Units P Pearson Units ? ? Review | Constants I Periodic Table 5 of 20 Copyright © 2023 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions | Contact Us |
Transcribed Image Text:Question 5 Gibbs free energy (G) is a measure of the spontaneity of a chemical reaction. It is the chemical potential for a reaction, and is minimized at equilibrium. It is defined as G=H-TS where H is enthalpy, T is temperature, and S is entropy. The chemical reaction that causes iron to corrode in air is given by 4Fe +302→2Fe2O3 in which at 298 K, AH AS = 543.7 J/K. 1684 kJ and I AGrxn = Submit Part C Teq = Submit Provide Feedback Value μA At what temperature Teq do the forward and reverse corrosion reactions occur in equilibrium? Express your answer as an integer and include the appropriate units. ► View Available Hint(s) μA Value Units P Pearson Units ? ? Review | Constants I Periodic Table 5 of 20 Copyright © 2023 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions | Contact Us |
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