Unit 9 | Thermodynamics and Electrochemistry

Thursday, 3 April

In class

1. Discuss the zinc and copper(II) sulfate redox reaction particle diagrams.
2. Convert the zinc and copper(II) sulfate reaction into an electrochemical cell.
3. Briefly review for the Acids and Bases retake exam tomorrow.

Assignments

1. Review for the retake exam.

Wednesday, 2 April

In class

1. Check in and discuss the Gibbs Energy and Equilibrium problem set.
2. Take the Free Energy and Equilibrium (practice) quiz in APC and discuss.
3. Listen to an introductory lecture on electrochemistry and the quest for cleaner fuel and review simple redox reactions.

Assignments

1. Watch the KA video Coupled Reactions.
2. Take the Applications of Thermodynamics: Quiz 1 in KA before the start of class on Friday.

Tuesday, 1 April

In class

1. Create particle diagrams for the process of dissolution to help explain the changes in enthalpy and entropy.
2. Describe the difference between Gibbs free energy and standard Gibbs free energy.
3. Work on the Gibbs Energy and Equilibrium problem set.

Assignments

1. Complete the Gibbs Energy and Equilibrium problem set before class tomorrow.
2. Continue reviewing Part 1 in Barron’s.
3. Look over exercises for the Acids and Bases retake on Friday.

Monday, 31 March

In class

1. Answer the wake up exercise on thermodynamic and kinetic stability.
2. Watch M&Ms Dissolving in Water
3. Explain the driving forces for the dissolution of sodium chloride versus magnesium chloride.

Assignments

1. Complete the KA assignment Free Energy and Equilibrium before the start of class tomorrow.
2. It’s time to begin reviewing for the College Board exam! Start this week with Part 1: Structure of Matter in the Barron’s book. Aim to finish the two chapters of this section by Friday.

Friday, 21 March

In class

1. Answer the wake up question on free energy.
2. Review your performance on the Acids and Bases unit exam.

Thursday, 20 March

In class

1. Calculate the change in entropy of the universe for:
   • ice melting and
   • nitrogen and hydrogen gas forming ammonia.
2. Develop a good working definition of free energy.
3. With your assigned group, answer the questions in the Free Energy problem set.

Assignments

1. Finish work on the problem set before class tomorrow. Your assigned groups will present a whiteboard of selected questions the Monday we return from Spring Break.

Wednesday, 19 March

In class

1. Answer a bonus question on creating a buffer solution.

Assignments

1. Read section 12.3 in your textbook on the second law of thermodynamics.

Tuesday, 18 March

In class

1. Take the Acids and Bases unit exam.

Monday, 17 March

In class

1. Ask questions and review for the Acids and Bases unit exam tomorrow.

Friday, 14 March

In class

1. Answer and present the entropy whiteboard problem set.
2. Q&A on acid/base topics for the unit exam next Tuesday.

Assignments

1. Complete the Gibbs free energy and thermodynamic favorability lesson in Khan Academy.
2. Continue reviewing for the Acids and Bases unit exam on Tuesday.

Thursday, 13 March

In class

1. Set up your Khan Academy account for this unit.
   • Join 3 Green
   • Join 4 Green
2. Classify a set of processes as either spontaneous or non spontaneous.
3. Ask questions about topics for the test on Tuesday.

Assignments

1. Complete the assigned lesson, Entropy, in Kahn Academy by class tomorrow.