## Search found 9 matches

Fri Feb 05, 2016 7:58 pm
Forum: Concepts & Calculations Using First Law of Thermodynamics
Topic: Workbook problem 5b
Replies: 2
Views: 316

### Re: Workbook problem 5b

Molar heat capacities actually increase along with mass. Generally, the more complex a compound is, the higher its molar heat capacity will be due to there being more bonds to break as well as more atoms that can move and vibrate.
Sat Jan 30, 2016 8:09 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Calculating voltage of a cell
Replies: 1
Views: 273

### Re: Calculating voltage of a cell

This is because the cell potential is an intensive property, so the amount of moles does not matter.
Sun Jan 24, 2016 2:08 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Calculating the heat released (8.31)
Replies: 1
Views: 379

### Re: Calculating the heat released (8.31)

Yes, that is the formula you use for solving the problem. Since the question states that Kr acts as an ideal gas, you would use Cv=3/2*R for C at a constant volume, and Cp=5/2*R for C at a constant pressure.
Mon Jan 18, 2016 12:21 am
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Question 8.1
Replies: 1
Views: 287

### Re: Question 8.1

I believe that the question was more focused on the point that the thermos bottle is insulated, and since it is "very high-quality," we can assume that it is more than exceptional in keeping the internal energy constant.
Thu Nov 19, 2015 11:45 pm
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: Video: Chemical Equilibrium and Finding Reaction Quotient
Replies: 1
Views: 323

### Re: Video: Chemical Equilibrium and Finding Reaction Quotien

Chem Video Part 2.mp4 [ 123.34 MiB | Viewed 321 times ]

Part 2
Thu Nov 19, 2015 11:14 pm
Forum: Non-Equilibrium Conditions & The Reaction Quotient
Topic: Video: Chemical Equilibrium and Finding Reaction Quotient
Replies: 1
Views: 323

### Video: Chemical Equilibrium and Finding Reaction Quotient

Chem Video .mp4 [ 388.3 MiB | Viewed 323 times ]

We did question 11.33 from the textbook on finding Q and comparing it to K. Participants: Fabian Najjar 3C and Manuel Gonzalez
Tue Oct 27, 2015 12:01 am
Forum: Sigma & Pi Bonds
Topic: Bonds [ENDORSED]
Replies: 3
Views: 643

### Re: Bonds[ENDORSED]

Double bonds are shorter in length because they are stronger than single bonds. The stronger the bond, the more tightly the two atoms cling to each other, thus the closer they are to each other.
Thu Oct 22, 2015 9:17 pm
Forum: Hybridization
Topic: Clarification on hybridization
Replies: 1
Views: 539

### Re: Clarification on hybridization

The hybridization is related to the areas of electron density surrounding the atom that you are focusing on. For example, BeH2 has two areas of electron density after you draw the lewis structure, and two regions of e- density corresponds with the hybridization sp. On page 125 of our textbook there ...
Fri Oct 16, 2015 2:55 pm
Forum: Ionic & Covalent Bonds
Topic: Ground State Electron Configuration for Ions
Replies: 3
Views: 825

### Re: Ground State Electron Configuration for Ions

I believe that lavelle would actually prefer your way, as he said that during one of his lectures. It proves that you can write out the electron configuration completely, as opposed to just writing the symbol for an element.