Search found 9 matches

by Teresa Chan 2G
Sun Mar 19, 2017 12:42 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Closed system and Midterm
Replies: 3
Views: 383

Closed system and Midterm

Can be volume change in a closed system?
I read that there can be, for example if there's a piston but I'm not sure. But if that's true then why on #2 in the midterm is U=0 in a closed system if the volume can change? Even though q=0, can't there be work?
by Teresa Chan 2G
Mon Mar 13, 2017 3:54 pm
Forum: Administrative Questions and Class Announcements
Topic: Final Exam Details and Review Sessions Winter 2017
Replies: 114
Views: 12520

Re: Final Exam Details and Review Sessions Winter 2017

Do we need to know how to draw and name functional groups attached to cyclic carbon structures like carbaldehyde?
by Teresa Chan 2G
Sun Mar 05, 2017 3:14 pm
Forum: *Alkanes
Topic: Naming [ENDORSED]
Replies: 92
Views: 7253

Re: Naming [ENDORSED]

There was also a thing Lavelle mentioned about not using a dash sometimes for the second to last term? It's in our course reader but was different on the powerpoint or something like that. Yeah the last carbon group doesn't need a dash, it just combines with the parent group, for example 3-ethyl-2,...
by Teresa Chan 2G
Wed Feb 22, 2017 11:06 pm
Forum: Administrative Questions and Class Announcements
Topic: Quiz 2 Winter 2017
Replies: 160
Views: 14093

Re: Quiz 2 Winter 2017. Help on Quiz 2 Prep please!

It is important to distinguish between the reaction and the rate constant. The units of rate constant are always M * s^-1. True or False. I think the answer is True, however I'm not sure about this question. Could someone please explain? I think the rate units are always M*s^-1, but the units of ra...
by Teresa Chan 2G
Thu Feb 09, 2017 10:43 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: 14.13 part d
Replies: 1
Views: 217

14.13 part d

How do we write the half reactions for and the cell diagram for this? I know the solutions manual gives the answer but I'm still confused as to how to do it
by Teresa Chan 2G
Sun Feb 05, 2017 1:59 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Cell Diagram
Replies: 2
Views: 184

Re: Cell Diagram

Hi, I think the textbook mentions that the reactant should be on the left and products on the right. For anode/cathode, if electrons are flowing to the right (+ cell potential), then the anode is on the left and cathode on the right. If electrons are flowing to the left (- cell potential), then the ...
by Teresa Chan 2G
Sat Jan 21, 2017 12:43 pm
Forum: Calculating Work of Expansion
Topic: entropy equations
Replies: 3
Views: 238

Re: entropy equations

But I don't think W is work? It's the W for degeneracy I believe
by Teresa Chan 2G
Fri Jan 20, 2017 11:27 pm
Forum: Calculating Work of Expansion
Topic: entropy equations
Replies: 3
Views: 238

entropy equations

In class we talked about how

does that mean W = V, and why is that?

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