Difference between revisions of "PChem312 f20 w7"

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Start Chapter 3
 
Start Chapter 3
  
====Sec 3.1===
+
====Sec 3.1====
 
:- Natural variables of U are T and V --> U(T,V), but first... P(V,T)
 
:- Natural variables of U are T and V --> U(T,V), but first... P(V,T)
  
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::* How does P change with T (at constant V)? --> nR/V
 
::* How does P change with T (at constant V)? --> nR/V
 
::* Final result --> dP = ...eq. 3.6, which has defined the terms:
 
::* Final result --> dP = ...eq. 3.6, which has defined the terms:
::: Thermal expansion coefficient (α) = eq 3.5
 
::: Isothermal compressibility (κ<sub>T</sub>) = eq. 3.5
 
  
 
In this section you are required to take derivatives - review Math Essentials (pages 21-27).
 
In this section you are required to take derivatives - review Math Essentials (pages 21-27).
  
 +
===Wednesday, Sept 30, 2020===
 +
cont. Sec 3.1...
  
 
:- note "inverse rule" --> eq. 3.1
 
:- note "inverse rule" --> eq. 3.1
 
:- note "cyclic rule" --> eq. 3.2
 
:- note "cyclic rule" --> eq. 3.2
  
===Wednesday, Sept 30, 2020===
+
:- Definitions:
 +
:: *Thermal expansion coefficient (α) = eq 3.5
 +
:: *Isothermal compressibility (κ<sub>T</sub>) = eq. 3.5
 +
 
 +
:- Review of Table 3.1/3.22
  
 
===Thursday, Oct 1, 2020===
 
===Thursday, Oct 1, 2020===
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:[[File:Peltier_data.png|100px]]
 
:[[File:Peltier_data.png|100px]]
  
4) Demo new glassblowing lathe...(optional)
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4) Derivatives practice (Math Essential 3 "Problem" page 64)
 +
 
 +
5) Demo new glassblowing lathe...(optional)
  
 
===Friday, Oct 2, 2020===
 
===Friday, Oct 2, 2020===
 +
cont Sec 3.1...
 +
 +
:- Derive useful form of V(T2) = V(T1)*(1+α*ΔT)
 +
:- Derive useful form of V(P2) = V(P1)*(1-κ<sub>T</sub>*ΔT)
 +
::* complete HW/Excel Thermometer table with global variables

Latest revision as of 12:33, 14 October 2020

...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:

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

Wednesday, Sept 30, 2020

cont. Sec 3.1...

- note "inverse rule" --> eq. 3.1
- note "cyclic rule" --> eq. 3.2
- Definitions:
*Thermal expansion coefficient (α) = eq 3.5
*Isothermal compressibility (κT) = eq. 3.5
- Review of Table 3.1/3.22

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) Derivatives practice (Math Essential 3 "Problem" page 64)

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

Friday, Oct 2, 2020

cont Sec 3.1...

- Derive useful form of V(T2) = V(T1)*(1+α*ΔT)
- Derive useful form of V(P2) = V(P1)*(1-κT*ΔT)
  • complete HW/Excel Thermometer table with global variables