Search found 8 matches

by Jingyuan_Fu_3E
Sat Mar 18, 2017 1:42 pm
Forum: Administrative Questions and Class Announcements
Topic: Saying Thank You to Dr. Lavelle
Replies: 209
Views: 101171

Re: Saying Thank You to Dr. Lavelle

Thank you Dr. Lavelle! Your very nice attitude and professional manner in teaching Chem 14B really helps us learn this subject well. You offer us many resources and facilitate class discussion(especially chemistry jokes lol), and I am really glad to have you as my Chem 14B professor! Thank you and b...
by Jingyuan_Fu_3E
Sun Mar 12, 2017 11:28 am
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7609
Views: 1020030

Re: Post All Chemistry Jokes Here

Q: What did thermometer say to the graduated cylinder?
A: "You may have graduated but I've got numerous degrees"
by Jingyuan_Fu_3E
Sun Mar 05, 2017 12:09 am
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7609
Views: 1020030

Re: Post All Chemistry Jokes Here

I don't want to tell jokes in class because I might get NO REACTION
by Jingyuan_Fu_3E
Tue Feb 21, 2017 9:11 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7609
Views: 1020030

Re: Post All Chemistry Jokes Here

Image
by Jingyuan_Fu_3E
Mon Feb 13, 2017 9:51 pm
Forum: Second Order Reactions
Topic: Questions about limiting step
Replies: 1
Views: 265

Questions about limiting step

In the lecture, Prof. Lavelle gives the example of NO2(g)+CO(g)-->NO(g)+CO2(g) in which the first step of two NO2 colliding limits the rate of the whole reaction because RATE=k[NO2]^2. So I would like to know if there is any example of a bimolecular reaction in which the rate is determined by the se...
by Jingyuan_Fu_3E
Mon Feb 13, 2017 9:30 pm
Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
Topic: Midterm 2015 Q6
Replies: 1
Views: 177

Midterm 2015 Q6

For this question I understand how K is calculated using the formila -RTlnK. However, when I tried to apply another formula E=E nod-0.05916V/n logQ, and tried to assume E=0 since at this time Q=K at equilibrium, I found that the answer that I calculated is not the same as the answer given. Could som...
by Jingyuan_Fu_3E
Mon Jan 30, 2017 11:32 pm
Forum: Gibbs Free Energy Concepts and Calculations
Topic: 9.81
Replies: 1
Views: 354

Re: 9.81

Hello, First of all, based on the two chemicals Fe3O4 and Fe2O3, I think you need to figure out a chemical reaction to link these two chemicals together and transvert one into another. The oxidation reaction 4Fe3O4(s)+O2(g)-->6Fe2O3(s) should be the easiest to think of. Then it can be possible to ca...
by Jingyuan_Fu_3E
Sun Jan 22, 2017 10:43 pm
Forum: Calculating Work of Expansion
Topic: Example of reversible expansion?
Replies: 1
Views: 268

Re: Example of reversible expansion?

I feel that the reversible expansion is more or less an ideal situation with the same internal and external pressure. "Reversible" here is similar to the "reversible" characteristic of a chemical equilibrium, where the infinitesimall changes in reactants and products are always o...

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