AP15 Entropy, Free Energy, & Equilibrium
Jeremy didn't get the AP memo that "disorder" should be changed to increased dispersion of matter and energy.
10 Weeks till the AP Exams, may you be thermodynamically favored!
AP15 Entropy, Free Energy and Equilibrium
Don't try to read the textbook Chapter completely.
Use the outline to guide you through the appropriate sections
(g) to (s)
unmixing |
The process in these videos is very unlikely since both would involve the decrease in entropy (decrease in dispersion of matter). The only way they would be thermodynamically favorable would be if they were driven by an outside force that itself would be increasing universal entropy enough to justify this local decrease in entropy. |
While the text and Rob Lederer use the terminology disorder and spontaneous, you should use the AP terminology (dispersal of matter and energy and thermodynamically favored) in any AP FRQ answers.
- AP15 C18 Predicting Sign of ΔG°
- AP15 C18 ΔG° and K (very important)
- Embrace the Chaos! Crash Course Chemistry #20 Course in Chemistry Entropy
Hank Green provides a fast romp through this unit that you will not be able to follow unless you know the basics.
AP15.10 C18 Entropy
The live labs will be posted in the next few days as I complete the videos and they will be due at the end of March.
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Colorimetry is an analysis technique that can accurately and quickly analyze concentrations that are so minuscule that the solute present in the sample would only weigh nanograms. The AP Curriculum expects you to know this technique, and you will do several labs using this technique with a home-made colorimeter.
This video uses an old-school spectrophotometer ($1,000).
This video uses the newer UV-Vis spectrophotometer (around $10,000). Colorimetry, explained in the virtual lab, is an analysis technique that can accurately and quickly analyze concentrations that are so minuscule that the solute present in the sample would only weigh nanograms.
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