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Calculate the change in Gibbs free energy for each of the sets of AHxn, ASrxn, and T given in the following problem. Part A AHn = - 85 kJ , ASrxn =– 153 J/K, T = 295 K Express your answer using two significant figures. AG = kJ Submit Request Answer Part B ΔΗ = - 85 kJ, AS =- 153 J/K,T = 760 K Express your answer using two significant figures. Ηνα ΑΣφ ? AG = kJ Submit Request Answer Part C AHn = 85 kJ , ASrxn = - 153 J/K,T = 295 K Express your answer using three significant figures.

Calculate the change in Gibbs free energy for each of the sets of AHxn, ASrxn, and T given in the following problem. Part A AHn = - 85 kJ , ASrxn =– 153 J/K, T = 295 K Express your answer using two significant figures. AG = kJ Submit Request Answer Part B ΔΗ = - 85 kJ, AS =- 153 J/K,T = 760 K Express your answer using two significant figures. Ηνα ΑΣφ ? AG = kJ Submit Request Answer Part C AHn = 85 kJ , ASrxn = - 153 J/K,T = 295 K Express your answer using three significant figures.

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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Concept explainers

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.

Question

A session.masteringchemistry.com/myct/itemView?assignmentProblemlD=158221134&offset=Dnext
<HW7 Thermodynamics
Exercise 18.44
3 of 10
I Review I Constants I Periodic Table
Calculate the change in Gibbs free energy for each of the sets of
AHrxn, ASpxn, and T given in the following problem.
Part D
AHan = - 85 kJ , ASn = 153 J/K, T = 396 K
Express your answer using three significant figures.
?
AG =
kJ
Submit
Request Answer
Part E
Predict whether or not the reaction in part A will be spontaneous at the temperature indicated. (Assume that all reactants and products are in their standard
states.)
O spontaneous
O nonspontaneous
Submit
Request Answer
Part F
Predict whether or not the reaction in part B will be spontaneous at the temperature indicated. (Assume that all reactants and products are in their standard
states.)
O spontaneous
O nonspontaneous
G Search or type URL
esc

A session.masteringchemistry.com/myct/itemView?assignmentProblemID=158221134&offset3Dnext
<HW7 _ Thermodynamics
Exercise 18.44
Calculate the change in Gibbs free energy for each of the sets of
AHxn, ASrxn, and T given in the following problem.
Part A
AHn =- 85 kJ , ASrxn = - 153 J/K, T = 295 K
Express your answer using two significant figures.
Πνα ΑΣφ
?
AG =
kJ
Submit
Request Answer
art B
AHn = - 85 kJ , ASxn = – 153 J/K, T = 760 K
Express your answer using two significant figures.
Hνα ΑΣφ
AG =
kJ
Submit
Request Answer
Part C
AH = 85 kJ , ASpxn = – 153 J/K,T = 295 K
Express your answer using three significant figures.

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