Module 10 Overview & Instructions
Foreword
Midterm Exam 3 will be your focus this week, but we continue with thermodynamics and end the week with oxidation numbers and redox reactions. Monday the 24th is Pioneer/Pie-n-Beer Day, so you have a 3-day weekend after your exam, but there is work to be done this week outside of that exam. Assignments are due this week on Sunday, July 23, but a better idea is to finish them by Friday so you have the long weekend to relax. Spoiler alert: Assignment extensions will not be granted.
Questions and Answers
Whatever you're struggling with this week, somebody else in our section probably is struggling with it, too. Post your question on the Module 10 Q&A Board.
If you know the answer to someone's question, post it. It's almost a certainty that more people in our section than just the person who posted the question want to know the answer.
Learning Outcomes/Objectives
By the conclusion of this learning module, you should be able to:
- calculate standard changes in enthalpy, entropy, and free energy from thermodynamic data.
- understand and calculate the total change in entropy for the system and surroundings in a chemical reaction.
- understand and use the relationship between the change in enthalpy and the change in entropy to calculate the change in free energy for a reaction.
- predict the circumstances, especially regarding temperature, under which a reaction will be spontaneous.
- estimate the temperature of phase transitions using the change in enthalpy and the change in entropy.
- understand the free-energy-coupling of reactions and how spontaneous reactions can drive non-spontaneous reactions.
- understand the absolute change in free energy as a driving force for a reaction.
- understand the relationships between
ΔΔG, K, and Q.
- calculate the free energy change for a reaction under non-standard conditions.
- understand and use the relationship between the standard free energy change and the equilibrium constant.
- understand the relationships between the standard free energy change, the forward rate constant, and the reverse rate constant.
- assign oxidation numbers to just about any element in just about any situation.
- balance ordinary redox reactions.
- balance redox reactions in acidic and basic solution.
Stuff to Read, Watch, Think About, and Study
Before you watch the videos below, download the Module 10 Slides Download Module 10 Slides, and use them to take notes as you follow along.
read: The Second and Third Laws of Thermodynamics Links to an external site.; Free Energy Links to an external site.
watch: Calculating Changes in Entropy and Free Energy; due by July 23 at 23:59 MDT
watch: Thermodynamics and Equilibrium; due by July 23 at 23:59 MDT
practice: zero-stakes practice -- thermodynamics study problems Download thermodynamics study problems; thermodynamics study problems key Download thermodynamics study problems key
do: WebAssign HW -- Free Energy, Enthalpy, and Equilibrium; due by July 23 at 23:59 MDT
do: WebAssign timed (90 min) quiz -- Thermodynamics; due by July 23 at 23:59 MDT
read: Balancing Oxidation-Reduction Reactions Links to an external site.
watch: Introduction to Oxidation-Reduction Reactions; due by July 23 at 23:59 MDT
watch: Balancing Redox Reactions in Acidic and Basic Solution; due by July 23 at 23:59 MDT
do: WebAssign HW -- Oxidation Numbers and Redox Reactions; due by July 23 at 23:59 MDT