Search found 30 matches
- Wed Mar 13, 2019 10:32 am
- Forum: Student Social/Study Group
- Topic: Curve?
- Replies: 50
- Views: 6168
Re: Curve?
if anyone knows more about this may they please update us, I have this similar question.
- Wed Mar 13, 2019 10:28 am
- Forum: Second Order Reactions
- Topic: Final
- Replies: 32
- Views: 2355
Re: Final
I had this similar question before and someone told me that it will mainly be more on things after the midterm but it will also be cumulative.
- Wed Mar 13, 2019 10:26 am
- Forum: Student Social/Study Group
- Topic: Final
- Replies: 24
- Views: 2164
Re: Final
Thank you Mikka! I wasn't able to find that in the class website.
- Wed Mar 13, 2019 10:25 am
- Forum: Student Social/Study Group
- Topic: Final
- Replies: 5
- Views: 850
Final
How is anyone going about studying for the final? Is there any plf's or TA's that are holding review session soon? starting this week?
- Fri Mar 08, 2019 1:41 pm
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: Final
- Replies: 3
- Views: 426
Final
Does anyone know if the final is cumulative? Or would we mostly be tested on what’s after the midterm?
- Fri Mar 08, 2019 1:38 pm
- Forum: First Order Reactions
- Topic: Order reactions
- Replies: 4
- Views: 516
Order reactions
How do you know if a reaction is zeroth, first or second order if it is not specified?
- Fri Mar 08, 2019 1:37 pm
- Forum: Zero Order Reactions
- Topic: Reactions Orders
- Replies: 2
- Views: 385
Reactions Orders
On the final, would Lavelle specify if a reaction is zeroth, first or second order?
- Fri Mar 01, 2019 11:53 am
- Forum: Balancing Redox Reactions
- Topic: Test #2
- Replies: 10
- Views: 1107
Test #2
How do you know to label each element in increasing power? It was a test #2 question.
- Fri Mar 01, 2019 11:46 am
- Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
- Topic: Test #2
- Replies: 10
- Views: 1027
Test #2
Does anyone know when would we get our test #2 back?
- Mon Feb 25, 2019 5:18 pm
- Forum: General Science Questions
- Topic: Test #2
- Replies: 2
- Views: 614
Test #2
Does anyone know the topics test #2 will cover?
- Fri Feb 22, 2019 9:16 am
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: Gibbs Free energy
- Replies: 5
- Views: 602
Gibbs Free energy
How do you know what temperature to use for delta G when it’s not given in the question?
- Fri Feb 22, 2019 9:06 am
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: Delta G spontaneity
- Replies: 7
- Views: 1219
Delta G spontaneity
How can you tell if delta G is spontaneous or non spontaneous when it is Temperature dependent?
- Fri Feb 22, 2019 7:03 am
- Forum: Balancing Redox Reactions
- Topic: Redox and Oxidation
- Replies: 3
- Views: 409
Redox and Oxidation
I still have trouble with redox and oxidation, would someone be kind enough to explain step by step how Lavelle did his in lecture on Wednesday, thanks!
- Fri Feb 15, 2019 4:17 pm
- Forum: Calculating Standard Reaction Entropies (e.g. , Using Standard Molar Entropies)
- Topic: Midterm Grades
- Replies: 35
- Views: 2736
Re: Midterm Grades
Most likely I’m our discussion section. If not, you can email your TA to find out.
- Fri Feb 15, 2019 3:55 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: Gibbs free energy
- Replies: 7
- Views: 724
Gibbs free energy
How can you tell when deltaG (Gibbs free energy) is spontaneous or non spontaneous?
- Fri Feb 15, 2019 3:41 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: Lecture Notes
- Replies: 1
- Views: 215
Lecture Notes
I missed lecture today because of a doctors appointment, I was wondering if anyone can please share their notes with me, I would greatly appreciate it!
- Fri Feb 08, 2019 8:11 pm
- Forum: Concepts & Calculations Using Second Law of Thermodynamics
- Topic: Steam vs. Boiled Water
- Replies: 2
- Views: 319
Re: Steam vs. Boiled Water
Recalling back from what Lavelle mentioned in class, he said, because the enthalpy required to vaporize is higher than the enthalpy required to liquidize, thus steam is hotter than boiled water.
- Fri Feb 08, 2019 8:07 pm
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Ideal Gas Laws
- Replies: 4
- Views: 579
Re: Ideal Gas Laws
How can one tell when you must use the ideal gas law?
- Fri Feb 08, 2019 8:06 pm
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Midterm [ENDORSED]
- Replies: 49
- Views: 4804
Re: Midterm [ENDORSED]
Would anyone mind posting some of the help that the TA's and UA's had during this week? I'd greatly appreciate it! the fact that I couldn't go to some is because I commute and its not worth wasting 4 hours of commute only for a 1 hour help. Thanks again!
- Fri Feb 01, 2019 9:14 am
- Forum: Student Social/Study Group
- Topic: Lecture Notes (1/30)
- Replies: 4
- Views: 418
Re: Lecture Notes (1/30)
Here are my notes also, I like to include the drawings that he puts on the slide along with them lol
- Fri Feb 01, 2019 9:00 am
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: 8.65 6th Edition
- Replies: 2
- Views: 303
Re: 8.65 6th Edition
It's important to note that ∆Hfº of a substance in its most stable form is 0. Some other examples of when they equal 0 are, H2, O2, N2, Cl2, Br2, I2, and F2, so in this case O2 = O, which iis in it's most stable form making it equal to 0.
- Fri Feb 01, 2019 8:45 am
- Forum: Concepts & Calculations Using First Law of Thermodynamics
- Topic: w and q
- Replies: 1
- Views: 168
Re: w and q
Hey Elizabeth, So, ∆U= q + w, when they are (+) or (-), Energy entering a system carries a (+) sign If heat is absorbed by the system then q is > 0 (+) If work is DONE ON A SYSTEM w>0 (+) Energy leaving a system carries a (-) sign giving off energy If heat is GIVEN OFF BY A SYSTEM q<0 (-) If work is...
- Fri Feb 01, 2019 8:36 am
- Forum: Concepts & Calculations Using First Law of Thermodynamics
- Topic: Question 8.3 6th edition
- Replies: 2
- Views: 242
Re: Question 8.3 6th edition
Thanks Janice!!
I was also wondering how to go about this problem, thank you for clarifying!
I was also wondering how to go about this problem, thank you for clarifying!
- Fri Jan 18, 2019 9:36 am
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Initial Concentrations of ICE Box and 12.79 (6th Edition)
- Replies: 3
- Views: 1223
Re: Initial Concentrations of ICE Box and 12.79 (6th Edition)
I had this same question, but I assume that the products in an instance that they are not zero is when the question first asks you to find a concentration at equilibrium and there is a follow up question that states that a certain product was added towards the end. As, for the question in the book I...
- Fri Jan 18, 2019 9:07 am
- Forum: Administrative Questions and Class Announcements
- Topic: Studying for First Discussion Test
- Replies: 10
- Views: 806
Re: Studying for First Discussion Test
Same here!! But I'm planning to study for the test by going over lecture notes and tying them back to my PLF notes (which are very helpful), I'm also trying to teach the topics to a buddy of mine who doesn't know the topics and if I am able to teach it then it'll mean I really learned the topic :), ...
- Wed Jan 16, 2019 7:50 am
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: 7th Edition 6A.19
- Replies: 2
- Views: 259
Re: 7th Edition 6A.19
I'm not sure if this helps or not, but I have the 6th edition and this similar problem appears in my textbook but mine says that H3O+ part (c) is 3.1mmol•L^-1 and when converting it to only moles it gives 0.0031 which is 3.1 x 10^-3. If by any chance this helps.
- Fri Jan 11, 2019 9:59 am
- Forum: Ideal Gases
- Topic: Pv=nRT [ENDORSED]
- Replies: 12
- Views: 772
Re: Pv=nRT [ENDORSED]
if in any case it is given in Celsius you only have to add 273.15 to the given temp. and it'll give you the Kelvin temp.
- Fri Jan 11, 2019 9:52 am
- Forum: Ideal Gases
- Topic: use
- Replies: 8
- Views: 261
Re: use
In regards to the question above, when is Kp used?
- Fri Jan 11, 2019 9:48 am
- Forum: Ideal Gases
- Topic: Q and K [ENDORSED]
- Replies: 35
- Views: 3129
Re: Q and K [ENDORSED]
How do you know when to use Q or K, is there a certain calculation? Or would the question specify so?
- Fri Jan 11, 2019 9:45 am
- Forum: Equilibrium Constants & Calculating Concentrations
- Topic: Converting Kc to Kp
- Replies: 4
- Views: 1130
Re: Converting Kc to Kp
Kp = Kc (RT)^Dn
P = nRT/V
R = 0.0821 L atm/mol K
T = Temperature in K
Dn = tot. mol product - tot. mol reactant
Not sure if this is the way, but I'm also trying to figure this out. Someone correct me if I'm wrong please!
P = nRT/V
R = 0.0821 L atm/mol K
T = Temperature in K
Dn = tot. mol product - tot. mol reactant
Not sure if this is the way, but I'm also trying to figure this out. Someone correct me if I'm wrong please!