## Search found 15 matches

Fri Mar 11, 2016 12:37 am
Forum: Administrative Questions and Class Announcements
Topic: Redox Reaction Video
Replies: 1
Views: 608

### Redox Reaction Video

Fri Mar 04, 2016 5:35 pm
Forum: *Alkanes and Substituted Alkanes (Staggered, Eclipsed, Gauche, Anti, Newman Projections)
Topic: Strain
Replies: 1
Views: 295

### Strain

Hi, I'm confused about the difference between steric strain, bond angle strain, and torsional strain. What are the differences?
Sat Feb 27, 2016 3:04 pm
Forum: Administrative Questions and Class Announcements
Topic: Final
Replies: 1
Views: 319

### Final

Is the final exam cumulative or is it just material that we learned after the midterm?
Sun Feb 21, 2016 10:03 pm
Forum: *Organic Reaction Mechanisms in General
Replies: 1
Views: 313

On page 89 in the coursereader, what does the exponent that looks like an = sign with a vertical line through it signify?
Tue Feb 09, 2016 3:43 pm
Forum: Balancing Redox Reactions
Topic: Midterm Winter 2012 Question 7B
Replies: 2
Views: 446

### Midterm Winter 2012 Question 7B

why is the anode reaction written in the format as if it were a reduction if it is being oxidized? Also, don't you want to maximize the voltage to get a positive voltage so that it would give you a more negative G?
Tue Feb 09, 2016 3:16 pm
Forum: Balancing Redox Reactions
Topic: Midterm Winter 2012 Question 7A
Replies: 1
Views: 364

### Midterm Winter 2012 Question 7A

Cu is being oxidized so the equation is in the format: Cu --> Cu2+ + 2e When given the Ecell of that reaction, the equation sheet says it is +.34 V when the equation is in the format Cu2+ + 2e --> Cu When finding the Ecathode by plugging in the Ecell that is given and the Eanode from the oxidized re...
Sat Feb 06, 2016 1:57 pm
Forum: First Order Reactions
Topic: Finding n and m
Replies: 1
Views: 330

### Finding n and m

I'm a little confused on how to calculate n and m. It wasn't very clear in the coursereader how for a first order reaction they both equal 1 and how you can determine this.
Sat Jan 30, 2016 6:05 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Gibbs Free energy and Spontaneous Reactions
Replies: 1
Views: 316

### Gibbs Free energy and Spontaneous Reactions

Sun Jan 24, 2016 9:33 pm
Forum: Phase Changes & Related Calculations
Topic: Practice Quiz 1 Question 8
Replies: 2
Views: 456

### Practice Quiz 1 Question 8

How do you know that bonds are being broken when going from Cl2 (g) --> 2Cl (g)?
Sat Jan 23, 2016 6:16 pm
Forum: Phase Changes & Related Calculations
Topic: Gibbs, Entropy, Enthalpy video
Replies: 1
Views: 295

### Gibbs, Entropy, Enthalpy video

Pretty good video explaining basics of gibbs free energy, entropy, and enthalpy
Sun Jan 17, 2016 9:19 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Constant Temperature in Ideal Gas Expansion
Replies: 2
Views: 537

### Constant Temperature in Ideal Gas Expansion

As mentioned in class, the system with an ideal gas and a vacuum will have a constant temperature becasue the energy that it loses when it is doing work is replaced by the heat of the surroundings going into the system. Does the heat coming into the system (q) come in for the purpose of maintaining ...
Fri Jan 15, 2016 3:03 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Work
Replies: 1
Views: 370

### Work

In the equation w=-PdeltaV, Dr. Lavelle explained that Pressure is negative because it means that the system is pushing out and doing work against a positive pressure. Does this mean that we should always assume that there is a positive pressure going against the system? What if there is no pressure...
Sun Jan 10, 2016 3:16 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: enthalpy definition
Replies: 2
Views: 464

### enthalpy definition

Page 16 of the coursereader says that enthalpy is "the amount of heat released/absorbed at a constant pressure." Why does enthalpy not include constant volume?
Sun Jan 10, 2016 2:24 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: constant volume and constant pressure
Replies: 1
Views: 330

### constant volume and constant pressure

Dr. Lavelle mentioned in class that the numbers of constant volume and constant pressure will be different because in constant pressure there will be heat expansion but in constant volume there will not be heat expansion. But he said that with both liquids and gases that they will both expand but on...
Sun Jan 10, 2016 2:10 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: enthalpy
Replies: 2
Views: 422

### enthalpy

In figure 8.18, it says that overall entropy change can be positive when the entropy of the system increases and also when the entropy of the system decreases and that in both cases it is spontaneous. How can the overall entropy change be positive in both cases if in one reaction the entropy increas...