PChem312 f20 w7

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...return to Chem 312 - home

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Monday, Sept 28, 2020

Start Chapter 3

=Sec 3.1

- Natural variables of U are T and V --> U(T,V), but first... P(V,T)
- See equation 3.3 --> dP = ...
  • How does P change with V (at constant T)? --> -nRT/V2
  • How does P change with T (at constant V)? --> nR/V
  • Final result --> dP = ...eq. 3.6, which has defined the terms:
Thermal expansion coefficient (α) = eq 3.5
Isothermal compressibility (κT) = eq. 3.5

In this section you are required to take derivatives - review Math Essentials (pages 21-27).


- note "inverse rule" --> eq. 3.1
- note "cyclic rule" --> eq. 3.2

Wednesday, Sept 30, 2020

Thursday, Oct 1, 2020

0) Class correction/Thermal Expansion-Compressibility Tables

1) Fire Syringe Demonstration (forgot to do earlier)

2) Cowboy Coffee Worksheet

3) Peltier Experiment

Intro view
Tech sheet on TEC1-12706
Peltier data.png

4) Demo new glassblowing lathe...(optional)

Friday, Oct 2, 2020