Difference between revisions of "PChem312 f20 w8"
Jump to navigation
Jump to search
| Line 24: | Line 24: | ||
===Friday, Oct 9, 2020=== | ===Friday, Oct 9, 2020=== | ||
| − | cont sec 3. | + | cont sec 3.3...review answers from Ex. Prob 3.5 |
====Sec 3.4==== | ====Sec 3.4==== | ||
| + | Enthalpy (H)...same treatment as Internal Energy (U)... | ||
| + | |||
| + | H(T,P) <-- best story told from this perspective. | ||
| + | :- eq. 3.26 | ||
| + | :- dH solution provided in class...similar to 3.16 for dU, but this equation does not show up in your textbook (???), but the pressure dependent part is shown in eq 3.39. | ||
| + | |||
| + | Summary of dH dependence on T and P, take home, depends on T, but not so much P. | ||
| + | |||
| + | ====Sec 3.5==== | ||
| + | quick discussion | ||
Revision as of 12:55, 14 October 2020
Monday, Oct 5, 2020
cont. sec 3.1...
- - Ex. Problem 3.1 - a thermometer at its limits...
Sec 3.2
Given, then derived
- - U(T,V)...eq 3.16
Wednesday, Oct 7, 2020
Sec 3.3
- - Ex Prob 3.2 --> internal pressure is 0 for an ideal gas.
- - Joule Experiment, but failed due to thermometer sensitivity (Ex. Prob 3.2).
- - Expansion of CO2 gas (paintball gun demo) - tank gets cold.
- - What is the value of the internal pressure is treated as real gas using van der Waals eq. (Ex. Prob 3.4)
Thursday, Oct 8, 2020
Friday, Oct 9, 2020
cont sec 3.3...review answers from Ex. Prob 3.5
Sec 3.4
Enthalpy (H)...same treatment as Internal Energy (U)...
H(T,P) <-- best story told from this perspective.
- - eq. 3.26
- - dH solution provided in class...similar to 3.16 for dU, but this equation does not show up in your textbook (???), but the pressure dependent part is shown in eq 3.39.
Summary of dH dependence on T and P, take home, depends on T, but not so much P.
Sec 3.5
quick discussion