New User Special Price Expires in

Let's log you in.

Sign in with Facebook


Don't have a StudySoup account? Create one here!


Create a StudySoup account

Be part of our community, it's free to join!

Sign up with Facebook


Create your account
By creating an account you agree to StudySoup's terms and conditions and privacy policy

Already have a StudySoup account? Login here

Chemistry: Sep. 12-16

by: Anzlee

Chemistry: Sep. 12-16 CHEM 1120


Preview These Notes for FREE

Get a free preview of these Notes, just enter your email below.

Unlock Preview
Unlock Preview

Preview these materials now for free

Why put in your email? Get access to more of this material and other relevant free materials for your school

View Preview

About this Document

These notes cover what was discussed in class from this week!
General Chemistry II
Ngee S Chong
Class Notes
25 ?




Popular in General Chemistry II

Popular in Chemistry

This 1 page Class Notes was uploaded by Anzlee on Thursday September 15, 2016. The Class Notes belongs to CHEM 1120 at Middle Tennessee State University taught by Ngee S Chong in Fall 2016. Since its upload, it has received 4 views. For similar materials see General Chemistry II in Chemistry at Middle Tennessee State University.


Reviews for Chemistry: Sep. 12-16


Report this Material


What is Karma?


Karma is the currency of StudySoup.

You can buy or earn more Karma at anytime and redeem it for class notes, study guides, flashcards, and more!

Date Created: 09/15/16
Thermodynamics Spontaneous Reactions: •   Most are exothermic- ∆H < 0 o   ex. combustion •   Endothermic spontaneous reactions- ∆H > 0 o   particles in product are more spread out than starting reactants o   ex. cold packs •   Gas à liquid à solid o   Heat is released •   Solidà liquidà gas o   Heat is put in Entropy: •   Entropy (S)- how dispersed energy is in a system at a temperature o   Effected from molecular motion and volume o   Increases from: increasing temperature, volume, complexity of structure, and independent particles o   Can never be negative (only zero if K is zero) •   Second Law of Thermodynamics- entropy of universe is equal to the entropy of the system and the surroundings (greater than zero) •   Entropy and microstates o   Motion of molecules in quantized- different molecular states are separated by energies o   Energy state/energy level- allowed value of energy o   Microstate- distribution of particles within energy level •   Boltzmann Equation: S = k lnBW o   kB= 1.38*10 -23J/K o   W = number of microstates •   Third Law of Thermodynamics- perfect crystal provides baseline for entropy because at absolute zero (0 K or -273 C), the entropy is zero •   Standard Molar Entropy (S )- absolute energy of 1 mole in standard state (298 K and 1 bar of pressure) o   Found from how much heat energy a substance must have to change temperature by one value •   Types of Molecular Motion (increases with increasing temperature): o   Translational- movement through space o   Rotational- perpendicular spinning motion around axis o   Vibrational- movement of atoms to and away from each other •   Entropy Change: ∆S rxn= ∆S sys S final Sinitial


Buy Material

Are you sure you want to buy this material for

25 Karma

Buy Material

BOOM! Enjoy Your Free Notes!

We've added these Notes to your profile, click here to view them now.


You're already Subscribed!

Looks like you've already subscribed to StudySoup, you won't need to purchase another subscription to get this material. To access this material simply click 'View Full Document'

Why people love StudySoup

Steve Martinelli UC Los Angeles

"There's no way I would have passed my Organic Chemistry class this semester without the notes and study guides I got from StudySoup."

Kyle Maynard Purdue

"When you're taking detailed notes and trying to help everyone else out in the class, it really helps you learn and understand the I made $280 on my first study guide!"

Bentley McCaw University of Florida

"I was shooting for a perfect 4.0 GPA this semester. Having StudySoup as a study aid was critical to helping me achieve my goal...and I nailed it!"


"Their 'Elite Notetakers' are making over $1,200/month in sales by creating high quality content that helps their classmates in a time of need."

Become an Elite Notetaker and start selling your notes online!

Refund Policy


All subscriptions to StudySoup are paid in full at the time of subscribing. To change your credit card information or to cancel your subscription, go to "Edit Settings". All credit card information will be available there. If you should decide to cancel your subscription, it will continue to be valid until the next payment period, as all payments for the current period were made in advance. For special circumstances, please email


StudySoup has more than 1 million course-specific study resources to help students study smarter. If you’re having trouble finding what you’re looking for, our customer support team can help you find what you need! Feel free to contact them here:

Recurring Subscriptions: If you have canceled your recurring subscription on the day of renewal and have not downloaded any documents, you may request a refund by submitting an email to

Satisfaction Guarantee: If you’re not satisfied with your subscription, you can contact us for further help. Contact must be made within 3 business days of your subscription purchase and your refund request will be subject for review.

Please Note: Refunds can never be provided more than 30 days after the initial purchase date regardless of your activity on the site.