# Register now to access 7 million high quality study materials (What's Course Hero?) Course Hero is the premier provider of high quality online educational resources. With millions of study documents, online tutors, digital flashcards and free courseware, Course Hero is helping students learn more efficiently and effectively. Whether you're interested in exploring new subjects or mastering key topics for your next exam, Course Hero has the tools you need to achieve your goals.

2 Pages

### Chapter 5 Notes

Course: CHEM 177, Spring 2008
School: Iowa State
Rating:

Word Count: 244

#### Document Preview

5 Chapter Thermochemistry The First Law of Thermodynamics Energy is conserved Internal Energy E=Efinal - Einitial Relating E to Heat and Work E= q + w When heat is added to a system or work is done ON a system, its internal energy increases Endothermic and Exothermic Processes Endothermic- absorbs heat Exothermic- loses heat State Functions Value of a state function depends on the present state of system, not...

Register Now

#### Unformatted Document Excerpt

Coursehero >> Iowa >> Iowa State >> CHEM 177

Course Hero has millions of student submitted documents similar to the one
below including study guides, practice problems, reference materials, practice exams, textbook help and tutor support.

Course Hero has millions of student submitted documents similar to the one below including study guides, practice problems, reference materials, practice exams, textbook help and tutor support.
5 Chapter Thermochemistry The First Law of Thermodynamics Energy is conserved Internal Energy E=Efinal - Einitial Relating E to Heat and Work E= q + w When heat is added to a system or work is done ON a system, its internal energy increases Endothermic and Exothermic Processes Endothermic- absorbs heat Exothermic- loses heat State Functions Value of a state function depends on the present state of system, not on path the system took to reach that state Enthalpy w= -PV enthalpy accounts for heat flow in processes occurring at constant pressure when no forms of work are performed other than P-V work H= E+ PV H=qp, change in enthalpy equals heat gained or lost at constant pressure Enthalpies of Reaction Chapter Thermochemistry H 5 = Hproducts - Hreactants Enthalpy is an extensive property Enthalpy change for a reaction is equal in magnitude, but opposite in sign, to H for the reverse reaction The enthalpy change for a reaction depends on the state of the reactants and products Calorimetry Heat Capacity and Specific Heat Specific heat (s) = q/ (m*T) q= mcT Constant Pressure Calorimetry qsoln = -qrxn Bomb Calorimetry Hess' Law If a reaction is carried out in a series of steps, H for the overall reaction will equal the sum of the enthalpy changes for the individual steps Enthalpies of Formation Hrxn = nHf(products) - mHf(reactants) Foods and Fuels Fuel value of a substance is heat released when 1 g is combusted
Find millions of documents on Course Hero - Study Guides, Lecture Notes, Reference Materials, Practice Exams and more. Course Hero has millions of course specific materials providing students with the best way to expand their education.

Below is a small sample set of documents:

Iowa State - CHEM - 177
The Wave Nature of Lightc=f 400-700nm is visible spectrum Gamma Rays, X rays, UV rays, Visible spectrum, Infrared, Microwaves, Radio wavesQuantized Energy and PhotonsHot Objects and the Quantization of EnergyE=h*v Planck's constant = 6.626 x 10^
Iowa State - OSCM - 320
The 4 Objectives of Operations ManagementCore services: basic things that customers want from products they purchase. 1. 2. 3. 4. Cost Quality Speed Flexibility1Slides used in class may be different from slides in student packOrder Qualifiers
Iowa State - ACCT - 285
Iowa State - MKT - 340
MKT 340 Exam 1 Review Customer Relationships and Value: * What is marketing? An organizational function and a set of processes for creating, communicating, and delivering value to customers and for managing customer relationships in ways that benefit
Iowa State - MKT - 340
Mkt 340 Fall 2006 EXAM 2 REVIEW Please make sure you cover these topics when reviewing for Exam 2. Additional issues discussed in class will also covered in the exam. MARKETING RESEARCH (Chapter 8) Understanding the MR process 1. Define the problem 2
Iowa State - MKT - 340
College of Business MKT 340 * Spring 2006 Final Exam ReviewPlease review the material for the comprehensive finals by going over the Reviews that were posted for Mid-Term Exams 1 and 2. Review for the non-comprehensive part of the exam (Chapters 15
Tufts - ENG - 77
1 &quot;I Sail Better Hung-over&quot; The Role of Defense Mechanisms In Sailing and its Surrounding CommunitySailing has sculpted me and my life for as long as I can remember. Since I was six, when I first began sailing, my schedule has been dictated by sail
Tufts - ENG - 77
Final Exam Current and the Motion of Charges -the rate of flow of electrical charge through a cross-sectional area I = Q/t (1A = 1 C/s) I = qnAvd, n = # of free charges = (Navog.)/Mmolar, vd = drift velocity Resistance and Ohm's Law potential drop V
Tufts - ENG - 1
Nathan Rosenberg Carolyn Croissant English I-Expository Writing Paper #3 The Bonfire of Humanity It is not often that an entire race is wiped from the face of the Earth. It is strange then to think that as genocide occurs now, in the modern world of
Tufts - CE - 70
Nathan Rosenberg CE 70 Site Assessment Tutu Well field The 108 acre Tutu Well field site, in a mountainous area of eastern central St. Thomas, U.S. Virgin Islands, consists of groundwater contamination from both known and unknown sources. In July 198
Iowa State - PSYCH - 312
Psych 312 - Monday, January 8, 2007/January 14, 2008Sensation - the initial process of detecting and encoding environmental energy. What goes on inside the sense organsSensory Psychologists study the sense receptor organs. Perception - the process o
Iowa State - PSYCH - 314
Psych 314 Motivation Tuesday, May 15, 2007Why is motivation important? To develop an understanding of why behavior occurs; a model for explaining and predicting behavior. Controlling and influencing behavior. Interventions are based on ideas about
Wisconsin - ACCT - 301
General Journal Date Account Titles and Explanation April 1 Cash Office Equipment Common Stock 2 Prepaid Rent Cash 3 Office Equipment Office Supplies Accts. Payable 6 Cash Services Revenue 9 Accts. Receivable Services Revenue 13 Accts. Payable Cash 1
Iowa State - PHIL - 201
Phil 201 Monday, May 14, 2007The philosophical questions today are the same there were hundreds of years ago. Three main groups of Philosophy Epistemology - The study of knowledge. What is knowledge? What criteria must be met for something to count
Tufts - ENG - 101
Nate Rosenberg English I Expository Writing Carolyn Croissant Paper #2It is a process that I have heard from friends, seen in movies, and been warned to avoid by parents. Sheltered by family, and curious out of their wits, college students go out i
Cornell - ALS - 402
Useful Animal Development WordsAboral surface- portion of the sea urchin body opposite mouth and containing openings for gonads Acrosome-the vesicle at the tip of the sperm head which contains enzymes to digest the jelly layer of the egg Acrosomal p
Cornell - ALS - 402
1.Why are there so few women in science and engineering? Percent of women with degrees in field o Graduation rates o Professional programs o Median age to have children o Occupation of women with college degrees Labor market o Employment rates o Ge
Cornell - ALS - 402
The Sickest Joke I have ever heard.Courtesy of dead-frog.com, Here is Ginkup 42's &quot;The Devils Bong&quot; Aristocrats JokeA family walks into a talent agency. It's a father, mother, son, daughter and dog. The father says to the talent agent, &quot;We have a
Cornell - ALS - 402
The Social Science Core Writing Program: Resources for Achieving Collective GoalsFreshmen Because our student body is drawn from such a vast and varied pool of elementary schools, it is disingenuous to assume that they all enter Northside having bee
Iowa State - HDFS - 341
HDFS 341Name _Dina Mumm_Reading Prep 1: Fair Housing Legislation: Not an Easy Row to Hoe 1. What was the problem in the 1960's in the U.S. that lead to the need for fair housing legislation? Blatant racial segregation that led to a lack of fundin
Wisconsin - KINES - 314
Anatomy and FlowThe heart muscleThe heart muscleConduction SystemAutomaticityAutomaticityCells SA Node AV Node Purkinje Rate 60-100 bpm 40-60 bpm 30-40 bpmPhase 4 dV/dtVentricular action potentialConduction System and ECGTEKG
Wisconsin - KINES - 314
Kinesiology 314: Cardiovascular Deconditioning &amp; MicrogravityDetraining/Bedrest When trained: Decreased Max HR Increased BV and SV Increased CO Increased VO2 max Detraining?VO2 Max-Bedrest vs detrainingMcGuire 200120-30%5-15%Detrai
Wisconsin - KINES - 314
Plasma Proteins, salts, glucose, FA Red blood cells hemoglobin 15 g/dl Other cells WBC Neutrophils Macrophages Platelets Hematocrit Vol RBC/total Vol 35-45%BloodHigh pressure &amp; lower volumeModel of the circulatory systemRight &amp; l
Wisconsin - KINES - 314
KINESIOLOGY 314 LAB EXAM #1 REVIEW1. 2. 3. 4. 5. Bring a calculator, pencil and eraser. You will be given a &quot;Formula and Conversions&quot; sheet similar to the one provided on the last page of this handout. Include the correct units in your answer; point
Wisconsin - KINES - 314
Cardiovascular Control During ExerciseCardiovascular Functions Delivery Oxygen and nutrientsRemoval CO2 and metabolic wastesTransport hormonesMaintenance Body temperature Fluid leves and pHPrevention infectionThe Heart Bl
Wisconsin - CHEM - 343
Ch. 15 outline: The Survey I. The Questionnaire A. Determining the Objectives B. Delimiting the Sample C. Constructing the Questionnaire i. Open-Ended Questions ii. Closed Questions a. ranking b. scaled items c. categorical responses iii. Appearance
Wisconsin - CHEM - 343
Ch. 17 outline: Physical Activity Epidemiology Research I. Purposes of Epidemiology II. Observational vs. Experimental Research III. What is Epidemiology? A. Definition B. Distribution i. Frequency prevalence, incidence ii. Patterns person, place,
Wisconsin - CHEM - 343
Ch. 18 outline: Experimental and Quasi-Experimental Research I. Establishing cause and effect A. temporal sequence B. cause and effect are associated C. association can't be explained by another variable D. only determined by logical thinking applied
Wisconsin - CHEM - 343
Chemistry 343 First Practice Exam 1. Give the correct IUPAC name for each of the following compounds. Don't forget stereochemistry. Br ClCH3 Br H H CH3 CH2 CH 3 2. Digitalin, which is a heart stimulant, has the following structure. It has 36 carbon
Wisconsin - CHEM - 343
Discussion 1January 23, 241. The following table contains the elements most commonly encountered in Chem 343. Fill in the blanks, using the row for hydrogen as an example. Name/Symbol Hydrogen / H Carbon Nitrogen Oxygen Fluorine Chlorine Bromine
Iowa State - HDFS - 341
1.Dina Mumm Reading Prep 2 HDFS 341 Expressives- performers and extroverts, often the center of attention; they are impulsive, not very dependable, and they wear their feelings on their sleeves. Their house as a whole. The feel of the place comes l
Wisconsin - PHIL - 101
Victoria Yakovleva Philosophy 101 Professor Shapiro 11 December 2006Judith Jarvis Thomson, in a &quot;Defense of Abortion,&quot; leads through a series of examples and explanations to support her view of why abortion should be permissible. One of the example
Texas A&M - PLAN - 370
PLAN 370 Study Guide Bryson, Chapter 1, Why Strategic Planning Is More Important Than Ever Major global trends and events are making it more important than ever that organizations and communities engage in effective strategic planning. Environmental
Texas A&M - PLAN - 370
PLAN 370 Study Guide Bryson, Chapter 2 The Strategy Change CyclePurposeful wandering: Boone had a destination, but not a route. Ten-Step Strategic Planning Process 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. Initiate and agree on a strategic planning process Id
Texas A&M - PLAN - 370
February 5, 2008CHAPTER 5 NOTESSWOC: Strengths/Weaknesses Opportunities/Challenges (Threats) Strengths/Weaknesses- Inside the System Opportunities/Challenges/ Outside the System PLANNING STYLES (Russell Ackopf): Reactive: Want to go back to the wa
Texas A&M - CHEM - 238
13.7 Uses of 13CNMR SpectrometryProvides details of structure Example: product orientation in elimination from 1-chloro-1-methylcyclohexane Difference in symmetry of products is directly observed in the spectrum 1-methylcyclohexene has five sp3 reso
Texas A&M - CHEM - 238
January 29, 2008CHAPTER 13 NOTESSECTION 13.11: Spin-Spin Splitting in 1H NMR Spectra Signals are often split into multiple peaks due to interactions between nonequivalent protons on adjacent carbons, called spin-spin splitting. The splitting is in
University of Iowa - BIO - 011
The Effects of the Enzyme-Substrate Complex, Competitive Inhibition, and Denaturation of the Enzyme on Enzyme ReactionsShanna Moore Student ID #00608051 Section A21 February 10, 2007Abstract The purpose of this experiment was to examine the effec
University of Iowa - AMERICAN S - 175
Fallen from his lofty and heroic station; now finally restored to the perception of truth; weighed to earth by the recollection of his own deeds; consoled no longer by a consciousness of rectitude, for the loss of offspring and wife-a loss for which
University of Iowa - AMERICAN S - 175
Dear Jonathan, I write this letter now with great sadness, for I know that you will never read it. You have paid the ultimate sacrifice atthe hands of pigs who will never understand our fight, our struggle. You, my brother, are the true revolutiona
University of Iowa - RHER - 001
Rough Draft. sorta When it comes to addressing the Scopes Trial of 1925, textbooks take several different approaches to the topic. From approaching William Jennings Bryan as a virtual hero in the fundamentalist world, to addressing the entire trial a
University of Iowa - RHER - 001
Colleges should not employ teacher's assistants to teach undergraduates unless they can pass an English Comprehension test that is pertinent to the subject matter that they will be teacher. A huge problem in undergraduate education is the lack of und
Penn State - HD FS - 129S
Abhi Parikh HDFS 129S Mrs. MoonPart of the first year seminar is to experience different activities and social gatherings. On October 22, 2007 there was a seminar that was conducted Mr. &amp; Mrs. Stakic. Both are doctors and are professors from a Penn
Penn State - HD FS - 129S
Sociocultural Comparison Paper Interview Questions:Basic InformationName &amp; Relation to interviewee: Year of birth: Gender: Race: Place of residence: Religious &amp; cultural identifications/affiliations: Include any other relevant demographic informati
Penn State - SPAN - 001
1. la boda (wedding)- Casamiento y fiesta con que se solemniza. 1) la corrida (bullfight) (do toros)- Fiesta que consiste en lidiar cierto nmero de toros en una plaza cerrada. 2) el desfile (parade)- Accin de desfilar 3) la entrada (ticket foe admiss
Penn State - SPAN - 001
Abhi Parikh Spanish 002 February 14, 2007 Mr. ZieglerEn mayo de 2007, fui mi baile del colegio de la escuela. El del colegio de la escuela un centro hermoso de threate York. Fui con un alumno del once grado que tambien indio. Nosotros ambos emparej
Penn State - ENGL - 004
Abhi Parikh English 004 September 5, 2007On this hot and humid summer day my mother, my brother, and I stand in the living room of my grandparents bungalow in India where we are surrounded by my uncle, aunt, my two cousins, and of course the man of
Houston Downtown - HIST - 1305
Courtney Robinson 1 Savage Land to Civilized CommunitySavage Land to Civilized Community: The Great Transformation of the Chesapeake In the hopes of finding wealth in a land unknown, colonists ventured out to settle the &quot;New World&quot;. Although rough
Houston Downtown - ENGLISH - 1301
Elroy Roberson Professor M. Hill English 1301-20281 February 18, 2008 Schooling vs. Education In his article &quot;Against School&quot;, John Taylor Gatto explains the flaws with the &quot;schooling&quot; of American children. Using the term schooling as the form of for
Wisconsin - CHEM - 563
Experiment 27 Conductance Behavior of Strong ElectrolytesAbstractThe equivalent conductance was found out by measuring resistance of solutions of strong electrolytes using a microprocessor based ratiometric conductivity measurement. Equivalent cond
Wisconsin - CHEM - 563
Experiment 32 : Thermodynamics of Electrochemical CellsAbstractThe electromotive force of a cell was measured at different temperature to obtain E E Volts . was found out to be ( 1.4 0.5) 10 4 . From that number, other T P T P K thermodynamics prop
Wisconsin - CHEM - 563
Experiment 46 : Viscosity of High Polymer SolutionsAbstractThe determination of intrinsic viscosity and several other quantities in this experiment is done by measuring the time required for a given volume of liquid to flow through a capillary tube
Wisconsin - CHEM - 563
Experiment 76 Heat of Reaction in SolutionAbstractThis experiment was done adiabatically in Dewar flask to determine the heat released in an acid-base reaction in solution. The enthalpies of reaction for this reaction was found out to be as follows
Wisconsin - SPANISH - 329
Acoso sexual Adepto/a Aduanero Al azar Aldea Almacenaje Almacenar Alojar Alojamiento Archivo Aterrizaje Auricular Batera Recargable Removible Bufe para ensalada Buscapersonas Buzon de voz Cafetera Calculadora Capacitar Carpeta Cartucho Casa matriz Ch
Wisconsin - CHEM - 563
Experiment 91 Kinetics of Reduction of Toluidine Blue by SulfiteAbstractThe purpose of this experiment is to investigate the effect of the ionic strength on the rate of reaction of toluidine blue and sulfite. It is observed that as concentration of
Illinois State - IDS 121 - ids 121.16
Ben Hirsh Issue #1 Reflection: Should Purchasing Health Insurance be Mandatory After reading the article for Issue One, I now have understanding for the actual process of insurance. The controversy of this issue basically stems from two sides of diff
Illinois State - IDS 121 - ids 121.16
Issue #3 Reflection: Is Medical Debt a Major Contributor to Personal Bankruptcy? My dad happens to be a bankruptcy lawyer that I occasionally work for in his office. I have seen so many families come into his office filing for bankruptcy due to being
Illinois State - IDS 121 - ids 121.16
Ben Hirsh IDS 121.16 Passport Number 2 When asked to analyze characters throughout this novel it caught me off guard. That seems like a typical question when reading a book, but after some thought I realized that this wouldn't just be any examination
Illinois State - MQM - 100
Ben Hirsh 8/26/07 MQM 100 Chapter 1 Assignment 1. 2. 3. 4. 5. 6. Descriptive Statistics Inferential Statistics Sample- Selection of a few elements from a population Population- Collection of all elements of interest Discrete and Continuous-continuous
Iowa State - MICROBIOLO - 201L
Determination of Bacterial Numbers Lab Report #1 Christy Skoglund Chin Cheun Heather Loges Melika Budimlic Matt BrowerThe purpose of this lab was to determine the amount of Escherichia coli in a given microtube by performing serial dilutions, stand
Iowa State - MICROBIOLO - 302
Micro 302 Spring 08 Paper Discussion #3 Necrotrophic Growth of Legionella pneumophila Due February 22th at 10AM Part I Paper DiscussionName: Melika BudimlicDirections: Please read &quot;Necrotrophic Growth of Legionella pneumophila&quot; (Temmerman et al.