MISSED THIS? Read Section 20.5 (Pages 913-917); Watch KCV20.5, IWE 20.6.Use tabulated half-cell potentials to calculate AG for each of thefollowing reactions at 25 °C.Part BO2(g) + 2H₂O(1) + 2Cu(s) →4OH(aq) + 2Cu²+ (aq)Express the energy change in kilojoules to one significant figure.► View Available Hint(s)AG-20 kJSubmitCorrectThere are fewer electrons transferred and the standard cell potential is smaller in magnitude when comparing this reaction to the one in Part A, so this redoxreaction is less spontaneous than that of Part A.Part CPrevious AnswersBr₂ (1) +21 (aq) → 2Br¯(aq) + I₂(s)Express the energy change in kilojoules to two significant figures.► View Available Hint(s)AG=SubmitVE ΑΣΦ- 11Previous Answers Request AnswerX Incorrect; Try Again; One attempt remaining?kJ

We can solve this problem by using the following equation ∆G° = -n×F×E° ∆G° = free energy change n…

Answered: Br₂ (1) +21 (aq) → 2Br (aq) + 12(5)…

Br₂ (1) +21 (aq) → 2Br (aq) + 12(5) Express the energy change in kilojoules to two significant figures. ▸ View Available Hint(s) AGTxn= 1951 ΑΣΦ 11 ? kJ

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

MISSED THIS? Read Section 20.5 (Pages 913-917); Watch KCV
20.5, IWE 20.6.
Use tabulated half-cell potentials to calculate AG for each of the
following reactions at 25 °C.
Part B
O2(g) + 2H₂O(1) + 2Cu(s) →4OH(aq) + 2Cu²+ (aq)
Express the energy change in kilojoules to one significant figure.
► View Available Hint(s)
AG-20 kJ
Submit
Correct
There are fewer electrons transferred and the standard cell potential is smaller in magnitude when comparing this reaction to the one in Part A, so this redox
reaction is less spontaneous than that of Part A.
Part C
Previous Answers
Br₂ (1) +21 (aq) → 2Br¯(aq) + I₂(s)
Express the energy change in kilojoules to two significant figures.
► View Available Hint(s)
AG=
Submit
VE ΑΣΦ
- 11
Previous Answers Request Answer
X Incorrect; Try Again; One attempt remaining
?
kJ

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