×

### Let's log you in.

or

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

×

or

## CHM 112 Week 1 Notes

1 review
by: Emily Swafford

59

2

4

# CHM 112 Week 1 Notes CHM 112

Marketplace > University of Miami > Chemistry > CHM 112 > CHM 112 Week 1 Notes
Emily Swafford
UM
GPA 3.94

Enter your email below and we will instantly email you these Notes for Chemistry 112

(Limited time offer)

Unlock FREE Class Notes

Everyone needs better class notes. Enter your email and we will send you notes for this class for free.

Thermodynamics
COURSE
Chemistry 112
PROF.
Dr Burjor Captain
TYPE
Class Notes
PAGES
4
WORDS
CONCEPTS
Chemistry
KARMA
Free

## 2

1 review
"I had to miss class because of a doctors appointment and these notes were a LIFESAVER"
Betsy McGlynn

## Popular in Chemistry

This 4 page Class Notes was uploaded by Emily Swafford on Monday January 18, 2016. The Class Notes belongs to CHM 112 at University of Miami taught by Dr Burjor Captain in Winter 2016. Since its upload, it has received 59 views. For similar materials see Chemistry 112 in Chemistry at University of Miami.

×

## Reviews for CHM 112 Week 1 Notes

I had to miss class because of a doctors appointment and these notes were a LIFESAVER

-Betsy McGlynn

×

×

### What is Karma?

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

Date Created: 01/18/16
Chemistry 112: Notes 1/11/16 Thermodynamics : W = F x D Work (Joules) = Force (Newton) x Distance (meters) F = m x v Force (Newton) = Mass (Kilograms) x Acceleration (Meters per Second ) 2 Heat – Energy transfer from one object to another because of a difference in temperature Energy – Capacity to work or transfer heat Kinetic Energy – Energy of motion KE = (.5)(mass)(velocity) 2 KE = (.5)(m)(v) 2 Potential Energy – Energy in terms of position; attractive and repulsive forces 1 Calorie = 4.184 Joules = The amount of energy required to raise 1g of water by 1 C 1 cal = 4.184 J st 1 Law: Energy is conserved. Energy is never created or destroyed. Energy lost by a system = Energy gained by surroundings and vice versa E = Change in internal energy of the system E = E final Einitial If E is positive, then finalE initial energy has been gained by the system from the surroundings. If E is negative, then E < E and energy has been lost by the system final initial to the surroundings. E = q + w q = heat added/taken to/from the system w = work done on or by the system If q is positive, heat is added to the system. If q is negative, heat is lost from the system. If w is positive, work is done on the system. If w is negative, work is done by the system. Example: If a system absorbs 50 J of heat and the system does 10 J of work on its surroundings, what is E? Answer: E = q + w q = +50 J (system absorbs heat) w = -10 J (work done by the system) E = 50 J + -10 J E = 40 J Enthalpy – to warm; (H) H – change in enthalpy H = q at constant pressure aka H = q p H = q p Chemistry 112: Notes 1/13/16 Thermodynamics : Endothermic (“endo” – into) Reactions – absorb heat; heat goes “into” the reaction Exothermic (“exo” – out of) Reasctions – release heat; heat goes “out of” the reaction Enthalpy of Reaction of Heat of Reaction: H reaction= H products- H reactants Properties of Enthalpy: 1) Extensive aka quantity matters Ex. In the reaction CH (g) + O (g)  H O (g) + CO (g) 4 2 2 2 H = -802 If you reacted twice the amount of methane, H = 2(-802) or -1604 2) H reaction equal in magnitude but opposite in sign to the reverse reaction Ex. 2Cl  Cl2 = exothermic (bond formed and energy released) Yet, Cl2 2Cl =endothermic (bond broken and energy needed) 3) H depends on the states of the reactants and products Ex. H 2 (l)  H2O (s) is exothermic Expanding Gas Confined to a Cylinder with a Moveable Piston: W = F x D P = F / A or F = P x A W = P x A x D (distance ex. height) V = Area x Height Therefore, W = -PV (System does work on the surrounding, so work is negative) E = q + w therefore, E = H - PV Chemistry 112: Notes 1/15/16 Thermodynamics : Calorimetry – Measure of heat flow Heat Capacity – Temperature change experienced by a body when it absorbs a certain amount of heat Molar Heat Capacity – Heat capacity for 1 mole Specific Heat Capacity (aka Specific Heat) – Heat capacity for 1 gram Specific Heat = (quantity of heat transferred) / ((grams of substance)(change in temperature)) C = q/((m)( T))

×

×

### BOOM! Enjoy Your Free Notes!

×

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."

Anthony Lee UC Santa Barbara

#### "I bought an awesome study guide, which helped me get an A in my Math 34B class this quarter!"

Jim McGreen Ohio University

Forbes

#### "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

#### STUDYSOUP CANCELLATION 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 support@studysoup.com

#### STUDYSOUP REFUND POLICY

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: support@studysoup.com

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 support@studysoup.com