Part A Calculate the standard enthalpy change for the reaction 2A +B= 2C + 2D where the heats of formation are given in the following table: AH? |(kJ/mol ) Substance A -257 B -405 225 -491 Express your answer in kilojoules. , View Available Hint(s) AHn = 387 kJ Submit Previous Answers Correct • Part B For the reaction given in Part A, how much heat is absorbed when 3.80 mol of A reacts? Express your answer numerically in kilojoules. , View Available Hint(s) kJ Submit , Part C For the reaction given in Part A, ASn is 35.0 J/K . What is the standard Gibbs free energy of the reaction, AGxn ? Express your answer numerically in kilojoules. , View Available Hint(s) AG{xn kJ

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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Please answer part b and c (the bottom two questions)

Part A
Calculate the standard enthalpy change for the reaction
2A +B= 2C + 2D
where the heats of formation are given in the following table:
AH?
|(kJ/mol )
Substance
A
-257
B
-405
225
-491
Express your answer in kilojoules.
, View Available Hint(s)
AHn = 387 kJ
Submit
Previous Answers
Correct
• Part B
For the reaction given in Part A, how much heat is absorbed when 3.80 mol of A reacts?
Express your answer numerically in kilojoules.
, View Available Hint(s)
kJ
Submit
, Part C
For the reaction given in Part A, ASn is 35.0 J/K . What is the standard Gibbs free energy of the reaction, AGxn ?
Express your answer numerically in kilojoules.
, View Available Hint(s)
AG{xn
kJ
Transcribed Image Text:Part A Calculate the standard enthalpy change for the reaction 2A +B= 2C + 2D where the heats of formation are given in the following table: AH? |(kJ/mol ) Substance A -257 B -405 225 -491 Express your answer in kilojoules. , View Available Hint(s) AHn = 387 kJ Submit Previous Answers Correct • Part B For the reaction given in Part A, how much heat is absorbed when 3.80 mol of A reacts? Express your answer numerically in kilojoules. , View Available Hint(s) kJ Submit , Part C For the reaction given in Part A, ASn is 35.0 J/K . What is the standard Gibbs free energy of the reaction, AGxn ? Express your answer numerically in kilojoules. , View Available Hint(s) AG{xn kJ
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