## Quiz Preparation

Kelly Tran 3N
Posts: 11
Joined: Sat Jul 09, 2016 3:00 am

### Quiz Preparation

What is the most effective way to prepare for Dr. Lavelle's quizzes? (I had Professor Li for 14A)

Natalie_Boyd_1C
Posts: 14
Joined: Wed Nov 09, 2016 3:00 am

### Re: Quiz Preparation

I've never had him either, but... this might help.
Thus far, the equations we have used are:

enthalpy:
1.definition of enthalpy: delta H= qp=
2. delta H= Hproducts - Hreactants
-->Phase Changes:
3. enthalpy of vaporization: delta Hvaporization= Hvapor - Hliquid
4. enthalpy of fusion: delta Hfusion= Hliquid - Hsolid
5. enthalpy of sublimation: delta Hsublimation=Hvapor - Hsolid
where Hvapor>Hliquid>Hsolid
--> "The three methods"
6. delta Hnet= Hreaction#1 - Hreaction#2
7. delta H= $\sum$Hbonds broken + $\sum$bond formed (bonds formed are negative, btw)
8.$\Delta H^{_{f}^{0}}(reaction)=\sum \Delta H^{_{f}^{0}}(products) - \sum \Delta H^{_{f}^{0}}(reactants)$
9. delta H=nCpdeltaT

10. w=-PdeltaV

internal energy:
11. delta U =Ufinal-Uinitial
12. V constant delta V=qv
13. delta U= q + w
14. delta U = delta H - PdeltaV

entropy:
15. S=kkln(W)
16. S=Rln(2)
17. S=kBlnW1W2
18. delta S= nRln (V2/V1)= q/T
19. delta= qREV
20. $\Delta S_{reaction}^{0}=\sum S_{products}^{0} - \sum S_{reactants}^{0}$

free energy:
21. delta G= delta H -TdeltaS
22. $\Delta G^{0}=\sum \Delta G_{f}^{0}(products) - \sum \Delta G_{f}^{0}(reactants)$
23.$\Delta G_{R}^{0}= -RTln(K)$
24. $\Delta G=\Delta G^{0} + RTln(Q)$

25. $ln(K)=-\frac{\Delta H^{0}}{RT} + \frac{\Delta S^{0}}{R}$
26.$ln(\frac{K_{2}}{K_{1}})=-\frac{\Delta H^{0}}{R}(\frac{1}{T_{2}}-\frac{1}{T_{1}})$

Posts: 37
Joined: Wed Sep 21, 2016 2:56 pm
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### Re: Quiz Preparation

The way I prepped for Dr. Lavelle's quizzes last quarter was to first go through the course reader and notes, writing down all important equations/formulas/definitions, just as the previous poster did. I would then do homework problems, noting down which topics were of difficulty for me. I'd next look up those topics in the notes/course reader again, and if that didn't provide enough clarification, I would read that section of the textbook. Finally, I would do the practice quiz (found in the back of the course reader). The UA and TA office hours are also a huge help if you're having difficulty with a certain concept or just want to get more practice.

Kristen_Power_1C
Posts: 13
Joined: Wed Nov 18, 2015 3:00 am

### Re: Quiz Preparation

Hi!
Along with the excellent suggestions of the people above me, I found it helpful to go through the examples and self-checks throughout the chapters that we covered (8 and 9). The examples help with learning how to nail when to use a specific equation, while the self-checks are helpful in thinking in a more "big picture" way about the concepts.

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