Search found 13 matches
- Sat Mar 12, 2016 2:17 pm
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Comparing heat capacities
- Replies: 1
- Views: 688
Comparing heat capacities
Why does ethane have a higher heat capacity than ethene, which has a double bond?
- Sat Mar 12, 2016 2:08 pm
- Forum: Third Law of Thermodynamics (For a Unique Ground State (W=1): S -> 0 as T -> 0) and Calculations Using Boltzmann Equation for Entropy
- Topic: Residual Entropy Comparisons
- Replies: 1
- Views: 553
Residual Entropy Comparisons
First of all what exactly does residual entropy mean, and how can you compare the entropy of two different molecules? In one of the finals there was a question that asked to compare the residual entropy of NO and BF3, how come NO has more?
- Mon Mar 07, 2016 7:40 pm
- Forum: *Carboxylic Acids
- Topic: Functional groups vs. Substituents
- Replies: 2
- Views: 6705
Functional groups vs. Substituents
What is the difference between a functional group and a substituent? Would carboxylic be considered just a functional group or would it also be a substituent?
- Thu Mar 03, 2016 10:08 am
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: The A in the Arrhenius Equation
- Replies: 1
- Views: 504
The A in the Arrhenius Equation
When we use the Arrhenius Equation, what is the A and how do we estimate a value for it if we want to solve for activation energy and are not given the A?
- Sun Feb 28, 2016 12:44 pm
- Forum: *Alkenes
- Topic: Double Bond and Placement
- Replies: 2
- Views: 693
Double Bond and Placement
If the double bond is placed within an R group, would the structure still be an alkene or does the double bond have to be in the parent chain structure? I'm just wondering where the double bond has to be or whether it doesn't matter and the fact that there is a double bond automatically classifies t...
- Tue Feb 23, 2016 2:37 pm
- Forum: *Free Energy of Activation vs Activation Energy
- Topic: Relation of delta G to multistep Ea
- Replies: 1
- Views: 623
Relation of delta G to multistep Ea
When a reaction has a profile similar to the example in the textbook where the reaction is a 2 step process with the first step including bond breaking and the second step involving bond making, why is it there still activation energy required for bond making? Doesn't it release energy instead?
- Sun Feb 21, 2016 10:53 pm
- Forum: General Rate Laws
- Topic: Rate = k[A][B] vs rate = -1/a d[A]/dt
- Replies: 2
- Views: 751
Re: Rate = k[A][B] vs rate = -1/a d[A]/dt
Going off of this, how is Rate=k[A][B] derived from the Rate=-1/a d[A]/dt and is that beyond the scope of this class? I don't really understand the link between the equations
- Mon Feb 08, 2016 1:08 am
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3646486
Re: Chemistry Jokes
If Avogadro calls tell him to leave his number
- Sun Jan 24, 2016 6:11 pm
- Forum: Calculating Work of Expansion
- Topic: Work of Reversible Expansion in relation to isothermality
- Replies: 1
- Views: 482
Work of Reversible Expansion in relation to isothermality
When doing problems that state that a reaction is reversible, how does the factor that it's isothermal factor in? How would the equation differ if it was isochoric or isobaric?
- Sun Jan 24, 2016 6:07 pm
- Forum: Student Social/Study Group
- Topic: Post All Chemistry Jokes Here
- Replies: 9651
- Views: 3646486
- Sun Jan 10, 2016 9:33 pm
- Forum: Phase Changes & Related Calculations
- Topic: Reversible and Irreversible Processes
- Replies: 4
- Views: 1060
Reversible and Irreversible Processes
What exactly is the difference between reversible and irreversible processes? They have different equations but how can the differences be logically explained?
- Fri Nov 27, 2015 6:13 pm
- Forum: Naming
- Topic: Video: Coordination Compounds
- Replies: 1
- Views: 556
Video: Coordination Compounds
Uploaded by Nataliya Karashchuk as an mp4 file. A video describing coordination compounds from the basics to naming to the biological importance.
- Mon Oct 05, 2015 9:49 pm
- Forum: *Shrodinger Equation
- Topic: What exactly do we need to know about Schrodinger equation?
- Replies: 4
- Views: 945
Re: What exactly do we need to know about this?
Going off of this, what exactly is Schrodinger's equation doing in relation to the derivative and energy? Is it also important to know? Or do we simply focus on the wave function?