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Part D Calculate AGxn at 25 °C. Express your answer in kilojoules to three significant figures. AGxn Submit 15. ΑΣΦ Request Answer kJ

Part D Calculate AGxn at 25 °C. Express your answer in kilojoules to three significant figures. AGxn Submit 15. ΑΣΦ Request Answer kJ

Chemistry & Chemical Reactivity
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter5: Principles Of Chemical Reactivity: Energy And Chemical Reactions
Section5.8: Product- Or Reactant-favored Reactions And Thermodynamics
Problem 1.2ACP
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7 MISSED THIS? Read Section 19.8 (Pages 871-877); Watch IWE 19.6. Liquid methanol burns in oxygen to form gaseous carbon dioxide and gaseous water. Substance H (kJ/mol) S° (J/(mol. K)) CH3OH (1) -238.6 126.8 O2 (g) 0 CO₂(g) -393.5 CO2(aq) -413.8 H₂O(g) -241.8 H₂O(1) -187.8 205.2 213.8 117.6 188.8 70.0 Part D Calculate AGxn at 25 °C. Express your answer in kilojoules to three significant figures. AGixn= Submit VE ΑΣΦ VO Request Answer ? kJ
Transcribed Image Text:7 MISSED THIS? Read Section 19.8 (Pages 871-877); Watch IWE 19.6. Liquid methanol burns in oxygen to form gaseous carbon dioxide and gaseous water. Substance H (kJ/mol) S° (J/(mol. K)) CH3OH (1) -238.6 126.8 O2 (g) 0 CO₂(g) -393.5 CO2(aq) -413.8 H₂O(g) -241.8 H₂O(1) -187.8 205.2 213.8 117.6 188.8 70.0 Part D Calculate AGxn at 25 °C. Express your answer in kilojoules to three significant figures. AGixn= Submit VE ΑΣΦ VO Request Answer ? kJ
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 ASixn - 543.7 J/K. = 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) Teq = Submit 14 μÅ Value Units ?
Transcribed Image Text: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 ASixn - 543.7 J/K. = 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) Teq = Submit 14 μÅ Value Units ?
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