Search found 35 matches
- Sun Mar 18, 2018 8:42 pm
- Forum: Concepts & Calculations Using First Law of Thermodynamics
- Topic: Internal Energy of Isolated Systems
- Replies: 6
- Views: 2543
Re: Internal Energy of Isolated Systems
constant volume means no work
draw
will we have to draw on our final?
- Sun Mar 18, 2018 8:38 pm
- Forum: *Alkanes and Substituted Alkanes (Staggered, Eclipsed, Gauche, Anti, Newman Projections)
- Topic: nucleophiles
- Replies: 3
- Views: 3938
nucleophiles
how do you find the nucleophiles ?
- Sun Mar 18, 2018 8:34 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: State functions?
- Replies: 9
- Views: 1350
Re: State functions?
why is U one?
- Sun Mar 18, 2018 8:32 pm
- Forum: Administrative Questions and Class Announcements
- Topic: Saying Thank You to Dr. Lavelle
- Replies: 490
- Views: 554021
Re: Saying Thank You to Dr. Lavelle
Honestly, thank you so much. You made me work, but I did learn so much
- Sun Mar 18, 2018 8:29 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Writing Cell Diagrams
- Replies: 3
- Views: 578
Re: Writing Cell Diagrams
a solid is always needed. know what the cathode and anode is
- Sun Mar 18, 2018 8:26 pm
- Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
- Topic: Cell Potential
- Replies: 9
- Views: 3237
Re: Cell Potential
when you do you switch the signs of given cell potentials?
- Sun Mar 18, 2018 8:20 pm
- Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
- Topic: Gibbs and Activation Energy
- Replies: 4
- Views: 758
Re: Gibbs and Activation Energy
not for material
- Sun Mar 18, 2018 8:16 pm
- Forum: Gibbs Free Energy Concepts and Calculations
- Topic: Delta G units
- Replies: 3
- Views: 2971
Re: Delta G units
-=spontaneous is also favorable right?
- Sun Mar 18, 2018 8:10 pm
- Forum: Van't Hoff Equation
- Topic: Derivation
- Replies: 9
- Views: 1236
Re: Derivation
its good to know them to guide you
- Sun Mar 18, 2018 8:08 pm
- Forum: Reaction Mechanisms, Reaction Profiles
- Topic: Catalyst and Intermediate
- Replies: 7
- Views: 1074
Re: Catalyst and Intermediate
a catalyst appears first as a reactant?
- Sat Mar 17, 2018 3:43 pm
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: Question 69
- Replies: 1
- Views: 493
Question 69
what does it mean here when it says, "the new pathway has a different pre-exponential factor"? what do we assume based off of this statement ?
- Sat Mar 17, 2018 3:18 pm
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: A?
- Replies: 6
- Views: 1082
Re: A?
is that why you can subtract them?
- Sat Mar 17, 2018 3:12 pm
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: 15.67?
- Replies: 5
- Views: 1284
Re: 15.67?
at the end, why do you multiply by k1/
- Sat Mar 17, 2018 3:02 pm
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: 15.67?
- Replies: 5
- Views: 1284
Re: 15.67?
at the end, why do you multiply by k1/
- Sun Mar 11, 2018 5:20 pm
- Forum: Second Order Reactions
- Topic: Half life
- Replies: 6
- Views: 982
Half life
for a second order reaction, when given something like 1/16 why do you flip it in the equation and write 16-1?
- Sun Mar 11, 2018 5:14 pm
- Forum: General Rate Laws
- Topic: Problem 15.3
- Replies: 4
- Views: 780
Re: Problem 15.3
You don’t need to know the order unless it asks for something st a certain time
- Sun Mar 11, 2018 5:11 pm
- Forum: Second Order Reactions
- Topic: Half life of second order reactions
- Replies: 8
- Views: 1335
Re: Half life of second order reactions
Do any of you know if lavelle has ever asked us to derive a half life formula on a previous test ?
- Sun Mar 11, 2018 5:10 pm
- Forum: Second Order Reactions
- Topic: the slope
- Replies: 12
- Views: 1602
Re: the slope
I don’t think lavelle would ever switch them on our test
- Sun Mar 04, 2018 8:47 pm
- Forum: Second Order Reactions
- Topic: Half life constant and Rate reaction constant
- Replies: 4
- Views: 682
Re: Half life constant and Rate reaction constant
So order does matter ?
- Sun Mar 04, 2018 8:46 pm
- Forum: First Order Reactions
- Topic: Derivations
- Replies: 6
- Views: 801
Derivations
Is there a good chance we may have to derive a formula on this weeks test?
- Sun Mar 04, 2018 8:45 pm
- Forum: Zero Order Reactions
- Topic: 15.15
- Replies: 3
- Views: 555
15.15
Because C is a zero order reaction, is that why we disregard it when trying to find the orders for a nd b?
- Sun Feb 18, 2018 8:15 pm
- Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
- Topic: Cell reactions
- Replies: 3
- Views: 1730
Re: Cell reactions
Will it always be left/right ?
- Sun Feb 18, 2018 8:13 pm
- Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
- Topic: Delta G= Wmax
- Replies: 8
- Views: 2484
Re: Delta G= Wmax
Why are they equal?
- Sun Feb 18, 2018 8:11 pm
- Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
- Topic: electrolytic cells
- Replies: 3
- Views: 676
Re: electrolytic cells
Electrolysis!!!
- Sun Feb 18, 2018 8:09 pm
- Forum: Balancing Redox Reactions
- Topic: Test 2
- Replies: 5
- Views: 663
Re: Test 2
I think only on the certain problem
- Sun Jan 28, 2018 6:27 pm
- Forum: Phase Changes & Related Calculations
- Topic: 8.41
- Replies: 6
- Views: 774
Re: 8.41
In this problem do you have to account for fusion as well ?
- Sun Jan 28, 2018 6:26 pm
- Forum: Environment, Fossil Fuels, Alternative Fuels
- Topic: biodiesel fuel [ENDORSED]
- Replies: 4
- Views: 1636
biodiesel fuel [ENDORSED]
What is so different about biodiesel fuel ?
- Sun Jan 28, 2018 6:20 pm
- Forum: Environment, Fossil Fuels, Alternative Fuels
- Topic: Energy Density
- Replies: 10
- Views: 4874
Re: Energy Density
So the higher the density, the greater it’s capacity ?
- Sun Jan 21, 2018 11:37 am
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Homework problem 8.59
- Replies: 5
- Views: 2256
Re: Homework problem 8.59
How do we know when an element is in its standard form?
- Sun Jan 21, 2018 1:59 am
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: 8.51
- Replies: 5
- Views: 388
Re: 8.51
How do you know when something is in its "most stable form"?
- Sat Jan 20, 2018 11:22 am
- Forum: Phase Changes & Related Calculations
- Topic: How to calculate final temperature? (7.39)
- Replies: 12
- Views: 47773
Re: How to calculate final temperature? (7.39)
When solving for T, do you ever multiply anything to Tfinal?
- Sun Jan 14, 2018 9:32 am
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Closed system and Midterm
- Replies: 3
- Views: 888
Re: Closed system and Midterm
So what’s an example of a closed system?
- Sun Jan 14, 2018 9:24 am
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Systems
- Replies: 7
- Views: 935
Systems
What’s an example of an open system? Something other than a human body
- Sun Jan 14, 2018 9:21 am
- Forum: Thermodynamic Systems (Open, Closed, Isolated)
- Topic: Quiz 1 [ENDORSED]
- Replies: 2
- Views: 552
Quiz 1 [ENDORSED]
Will quiz 1 only cover topics from chapter 8?