Week 3 Test

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nathansalce 3e
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Week 3 Test

Postby nathansalce 3e » Fri Jan 19, 2018 11:16 pm

Does anybody know, in terms of the assigned homework for this chapter, what numbered problems correlate to what we are actually being tested on in Week 3?, Professor has talked about omitting part of the chapter, the part he is teaching next week, but what numbered problems should I be doing to prepare myself for Week 3's Test?

Christine Wastila 1H
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Re: Week 3 Test

Postby Christine Wastila 1H » Sat Jan 20, 2018 11:42 am

In terms of numbered problems, the only ones I see that have isothermal reversible expansion are 8.11 part B and 8.12 part B, so just omit those.

Chem_Mod
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Re: Week 3 Test 1  Topic is endorsed

Postby Chem_Mod » Sat Jan 20, 2018 12:44 pm

Test 1: I have decided that we need to do more examples and you need more time for ‘work’ and ‘energy’. :-)

Calculations involving work and internal energy will not be on Test 1.

Concept questions involving work and internal energy will be on Test 1, but not calculating w and delta U.

Sarah Wax 1G
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Re: Week 3 Test

Postby Sarah Wax 1G » Sat Jan 20, 2018 3:58 pm

Also, anything involving bond enthalpies, enthalpies of formation, and calculating energy from a calorimeter will be on the test.

Sabrina Fardeheb 2B
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Re: Week 3 Test

Postby Sabrina Fardeheb 2B » Sun Jan 21, 2018 4:28 pm

I would focus more on the concepts of work and internal energy as well as calculating enthalpy and heat. This includes: the different methods of solving for enthalpy, calorimeter calculations. Don't worry about the equations that you need to calculate the actual work and internal energy. Hope this helps!

Essly Mendoza 1J
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Re: Week 3 Test

Postby Essly Mendoza 1J » Sun Jan 21, 2018 5:56 pm

Does anyone know which homework problems from Chapter 8 are the ones we don't need to study for test 1?

Miranda 1J
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Re: Week 3 Test

Postby Miranda 1J » Sun Jan 21, 2018 6:07 pm

For the test do we need to know how to derive the work equation? I know Dr. Lavelle said work and DU won't be on the test but this seems like a conceptual thing to me so I'm not entirely sure.

zanekoch1A
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Re: Week 3 Test

Postby zanekoch1A » Sun Jan 21, 2018 8:41 pm

Does anyone know if the born-haber cycle will be tested? There is a whole section on it in the chapter but we have not talked about it in class

Mishta Stanislaus 1H
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Re: Week 3 Test

Postby Mishta Stanislaus 1H » Sun Jan 21, 2018 8:51 pm

Miranda 1J wrote:For the test do we need to know how to derive the work equation? I know Dr. Lavelle said work and DU won't be on the test but this seems like a conceptual thing to me so I'm not entirely sure.



I have this same question

Warda Sahib 2J
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Re: Week 3 Test

Postby Warda Sahib 2J » Sun Jan 21, 2018 9:01 pm

Does Dr. Lavelle only test on things he's talked about?

Jack Papciak 2F
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Re: Week 3 Test

Postby Jack Papciak 2F » Sun Jan 21, 2018 9:02 pm

Are there any formulas that we need to memorize?

Veritas Kim 2L
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Re: Week 3 Test

Postby Veritas Kim 2L » Sun Jan 21, 2018 9:05 pm

If you look at the outline for chapter 8, it says that born-haber is not included!

Sarah Clemens 1B
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Re: Week 3 Test

Postby Sarah Clemens 1B » Sun Jan 21, 2018 9:15 pm

Can anyone give me an example of a conceptual question that has to do with work or energy?

Katie Blann 1E
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Re: Week 3 Test

Postby Katie Blann 1E » Sun Jan 21, 2018 10:00 pm

Will we have an equation sheet and necessary values provided for the test?

Thompson W 2C
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Re: Week 3 Test

Postby Thompson W 2C » Sun Jan 21, 2018 10:37 pm

Yes, a formula sheet with constants and equations will be provided.
Here's the sheet: https://lavelle.chem.ucla.edu/wp-conten ... ations.pdf

Thompson W 2C
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Re: Week 3 Test

Postby Thompson W 2C » Sun Jan 21, 2018 10:40 pm

I believe any necessary values would be given as well.

104922499 1F
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Re: Week 3 Test

Postby 104922499 1F » Sun Jan 21, 2018 11:17 pm

Mishta Stanislaus 1H wrote:
Miranda 1J wrote:For the test do we need to know how to derive the work equation? I know Dr. Lavelle said work and DU won't be on the test but this seems like a conceptual thing to me so I'm not entirely sure.



I have this same question


this is equation 4, and Lavelle said not to worry about it for test 1. But know conceptually

ZoeHahn1J
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Re: Week 3 Test

Postby ZoeHahn1J » Mon Jan 22, 2018 12:15 am

Calculating values for work, internal energy and solving reversible expansion problems will not be on the test!

Nickolas Manipud 1C
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Re: Week 3 Test

Postby Nickolas Manipud 1C » Mon Jan 22, 2018 12:29 am

Doing ALL the problems (except for the ones he said to skip) he assigns will prepare you enough for the test

Natalie LeRaybaud 1G
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Re: Week 3 Test

Postby Natalie LeRaybaud 1G » Mon Jan 22, 2018 4:14 pm

After going through the homework I noticed numbers 3-13,25-31, and 47-49 all have to do with calculating work or internal energy. I would suggest studying all the other homework problems specifically for this upcoming test.

Lauryn Jordan 1F
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Re: Week 3 Test

Postby Lauryn Jordan 1F » Mon Jan 22, 2018 11:46 pm

will internal energy be on the test?

Patricia Macalalag 2E
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Re: Week 3 Test

Postby Patricia Macalalag 2E » Mon Jan 22, 2018 11:54 pm

Lauryn Jordan 1F wrote:will internal energy be on the test?


We won't be required to solve for internal energy, I believe, but there will probably be concept questions on it.

Jennifer Ho 1K
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Re: Week 3 Test

Postby Jennifer Ho 1K » Tue Jan 23, 2018 1:27 am

how similar are the homework questions to lavelle's test questions?

Sara Sasaki 1K
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Re: Week 3 Test

Postby Sara Sasaki 1K » Tue Jan 23, 2018 10:31 am

Warda Sahib 2E wrote:Does Dr. Lavelle only test on things he's talked about?

For the most part, Dr. Lavelle covers everything we should know for the test conceptually with some examples, but it's definitely recommended to prepare by doing the homework while also reviewing notes!

Sara Sasaki 1K
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Re: Week 3 Test

Postby Sara Sasaki 1K » Tue Jan 23, 2018 10:37 am

Jennifer Ho 1K wrote:how similar are the homework questions to lavelle's test questions?

Dr. Lavelle usually includes a homework problem or one that is very similar to the homework in his tests, so it can be pretty similar. In general I find it really helpful to do the homework! If anything, sometimes the homework can be less straightforward than test problems.

Michelle Steinberg2J
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Re: Week 3 Test

Postby Michelle Steinberg2J » Tue Jan 23, 2018 11:48 am

Warda Sahib 2E wrote:Does Dr. Lavelle only test on things he's talked about?


In 14A it was pretty much if he didn't cover the topic in class then we do not need to know it for the test. The HW problems are pretty good indicators of what he will test on.

Michelle Steinberg2J
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Re: Week 3 Test

Postby Michelle Steinberg2J » Tue Jan 23, 2018 11:49 am

What sort of concepts should we be comfortable with for internal energy and work? I'm confused what we will be tested on conceptually - I feel like internal energy and work deals mostly with calculations.

Thanks!!

Mishta Stanislaus 1H
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Re: Week 3 Test

Postby Mishta Stanislaus 1H » Tue Jan 23, 2018 12:18 pm

Natalie LeRaybaud 1G wrote:After going through the homework I noticed numbers 3-13,25-31, and 47-49 all have to do with calculating work or internal energy. I would suggest studying all the other homework problems specifically for this upcoming test.


Can anyone else confirm that these problems aren't going to be tested on?

Lorie Seuylemezian-2K
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Re: Week 3 Test

Postby Lorie Seuylemezian-2K » Tue Jan 23, 2018 3:48 pm

Mishta Stanislaus 1H wrote:
Natalie LeRaybaud 1G wrote:After going through the homework I noticed numbers 3-13,25-31, and 47-49 all have to do with calculating work or internal energy. I would suggest studying all the other homework problems specifically for this upcoming test.


Can anyone else confirm that these problems aren't going to be tested on?


I hav the same question

melissa carey 1f
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Re: Week 3 Test

Postby melissa carey 1f » Tue Jan 23, 2018 4:32 pm

Will we be tested on memorizing the formulas in section 8.10: A Molecular Interlude: The Origin of the Heat Capacities of Gases? Thanks!

Christiana2D
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Re: Week 3 Test

Postby Christiana2D » Tue Jan 23, 2018 8:52 pm

melissa carey 1f wrote:Will we be tested on memorizing the formulas in section 8.10: A Molecular Interlude: The Origin of the Heat Capacities of Gases? Thanks!

These equations are included on the constants and equations worksheet. We would likely just need to know how to apply them.

Nha Dang 2I
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Re: Week 3 Test

Postby Nha Dang 2I » Tue Jan 23, 2018 10:09 pm

Jennifer Ho 1K wrote:how similar are the homework questions to lavelle's test questions?


On the syllabus, it says, "Homework problems will be included in tests and exams"! And I believe I saw somewhere that said at least 1 homework problem will be on the test? Either way, doing the homework always helps for Lavelle's tests!

Renee Delamater 2H
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Re: Week 3 Test

Postby Renee Delamater 2H » Tue Jan 23, 2018 10:17 pm

Content from this week won't be on the exam, right? I'm pretty sure it's just material from Weeks 1 and 2

lauren chung 2f
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Re: Week 3 Test

Postby lauren chung 2f » Wed Jan 24, 2018 12:53 am

Yes, he wrote on his website that the test will only have material covered in weeks 1 and 2.

rkusampudi
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Re: Week 3 Test

Postby rkusampudi » Wed Jan 24, 2018 4:42 pm

There are no calculations on heat and internal energy but you do have to understand the concepts.

Adam Enomoto 1L
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Re: Week 3 Test

Postby Adam Enomoto 1L » Wed Jan 24, 2018 5:51 pm

understanding the concepts just means like being able to interpret what the equations solve for?

Chloe1K
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Re: Week 3 Test

Postby Chloe1K » Thu Jan 25, 2018 12:07 am

what is an example of a conceptual question in terms of internal energy?

Hellen Truong 2J
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Re: Week 3 Test

Postby Hellen Truong 2J » Fri Jan 26, 2018 12:59 am

Chloe1K wrote:what is an example of a conceptual question in terms of internal energy?

I think for example he could give you a scenario where the walls between the system and the surroundings are adiabatic. Then, it could be true/false for a series of things like:

q=0 True
q>0 False
delta U = w True
delta U = q True if w=0


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