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+ Gibbs Free Energy: Temperature Dependence Gibbs free energy (C) 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 aluminum to corrode in air is given by 4A130₂2Al₂O3 3352 kJ and in which at 298 K, AH AS 625.1 J/K. Part A 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) AGixn= Value Submit Part B AGran = What is the Gibbs free energy for this reaction at 5975 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) Submit μÀ Units Value ? Units ? 23 of 41 (> Review | Constants | Periodic Table

+ Gibbs Free Energy: Temperature Dependence Gibbs free energy (C) 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 aluminum to corrode in air is given by 4A130₂2Al₂O3 3352 kJ and in which at 298 K, AH AS 625.1 J/K. Part A 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) AGixn= Value Submit Part B AGran = What is the Gibbs free energy for this reaction at 5975 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) Submit μÀ Units Value ? Units ? 23 of 41 (> Review | Constants | Periodic Table

Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter16: Thermodynamics: Directionality Of Chemical Reactions
Section: Chapter Questions
Problem 63QRT
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Part C 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) Toq Value Units [y] ?
Transcribed Image Text:Part C 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) Toq Value Units [y] ?
+ Gibbs Free Energy: Temperature Dependence 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 aluminum to corrode in air is given by 4A1 30₂ 2Al₂O3 3352 kJ and in which at 298 K, AH ASixn 625.1 J/K. Part A 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) AG Submit Part B Value Submit μÀ AGrxn= Value ← What is the Gibbs free energy for this reaction 5975 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) Units 6 → ? Units ? 23 of 41 (> Review | Constants | Periodic Table
Transcribed Image Text:+ Gibbs Free Energy: Temperature Dependence 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 aluminum to corrode in air is given by 4A1 30₂ 2Al₂O3 3352 kJ and in which at 298 K, AH ASixn 625.1 J/K. Part A 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) AG Submit Part B Value Submit μÀ AGrxn= Value ← What is the Gibbs free energy for this reaction 5975 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) Units 6 → ? Units ? 23 of 41 (> Review | Constants | Periodic Table
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