Thermodynamics the study of energy transformations and transfer THREE QUESTIONS to be addressed: 1. Will a reaction occur when two substances are mixed.

Slides:



Advertisements
Similar presentations
Chemical Thermodynamics
Advertisements

Department of Chemistry and Biochemistry CHM Reeves CHM 101 – Chapter Nineteen Spontaneous Processes Entropy & the Second Law of Thermodynamics The.
Thermodynamics. Heat and Temperature Thermochemistry is the study of the transfers of energy as heat that accompany chemical reactions and physical changes.
Chapter 19 Chemical Thermodynamics
Control of Chemical Reactions. Thermodynamic Control of Reactions Enthalpy Bond Energies – Forming stronger bonds favors reactions. – Molecules with strong.
System. surroundings. universe.
Thermodynamics Chapter 19 Liquid benzene Production of quicklime Solid benzene ⇅ CaCO 3 (s) ⇌ CaO + CO 2.
Chemical Thermodynamics © 2009, Prentice-Hall, Inc. Chapter 19 Chemical Thermodynamics Chemistry, The Central Science, 11th edition Theodore L. Brown;
Chapter 18 Entropy, Free Energy and Equilibrium
Chemistry 6440 / 7440 Thermochemistry. Resources McQuarrie, Statistical Thermodynamics, University Science Books, 1973 Foresman and Frisch, Exploring.
Thermochemistry. Thermochemistry is the study of the heat released (-  H) or absorbed (+  H) by chemical and physical changes. Thermochemistry.
Heat Capacity Amount of energy required to raise the temperature of a substance by 1C (extensive property) For 1 mol of substance: molar heat capacity.
Thermodynamics Chapter st Law of Thermodynamics Energy is conserved.  E = q + w.
Energy Changes in Chemical Reactions -- Chapter First Law of Thermodynamics (Conservation of energy)  E = q + w where, q = heat absorbed by system.
Thermodynamics Chapter 19 Brown-LeMay. I. Review of Concepts Thermodynamics – area dealing with energy and relationships First Law of Thermo – law of.
Spontaneity, Entropy, and Free Energy
First Law of Thermodynamics-The total amount of energy in the universe is constant. Second Law of Thermodynamics- All real processes occur spontaneously.
AP Chemistry Chapter 17 Spontaneity of Reaction Spontaneous reactions What does that mean? Some occur without any “help” Others require some “help” No.
Chapter 19 Chemical Thermodynamics. First Law of Thermodynamics Energy cannot be created nor destroyed. Therefore, the total energy of the universe is.
THERMODYNAMICS Internal Energy Enthalpy Entropy Free Energy Chapter 17 (McM) Chapter 20 Silberberg.
Prentice Hall © 2003Chapter 19 Chapter 19 Chemical Thermodynamics CHEMISTRY The Central Science 9th Edition David P. White.
THERMODYNAMICS!!!! Nick Fox Dan Voicu.
Thermodynamics Chapter 19. First Law of Thermodynamics You will recall from Chapter 5 that energy cannot be created or destroyed. Therefore, the total.
Chapter 19 Notes Chemical Thermodynamics- Entropy and The Laws of Thermodynamics.
A C RASH C OURSE IN T HERMODYNAMICS Darynn Magee.
Chapter 18: Thermodynamics Renee Y. Becker Valencia Community College.
Energy Many ways to describe energy changes in thermodynamics Originally developed to describe changes in heat and ‘work’ (think a steam engine piston)
The first law of thermodynamics states that __________ is conserved. a.matter b.energy c.entropy d.temperature.
Spontaneity, Entropy & Free Energy.  1 st Law of Thermodynamics  Spontaneous processes  Entropy (S)  Position probability  States of matter  Page.
Thermodynamics Mr. Leavings. Objectives Use the laws of thermodynamics to solve problems, identify energy flow within a system, determine the classification.
Chapter 19 Chemical Thermodynamics Lecture Presentation John D. Bookstaver St. Charles Community College Cottleville, MO © 2012 Pearson Education, Inc.
Spontaneity, Entropy and Free Energy. Spontaneous Processes and Entropy  First Law “Energy can neither be created nor destroyed" The energy of the universe.
AP Chapter 19.  Energy can not be created nor destroyed, only transferred between a system and the surroundings.  The energy in the universe is constant.
 S univ =  S sys +  S surr Must be ____ for spontaneity as dictated by… + …the Second Law of Thermodynamics  S surr =  H / T (at constant P) So that:
Entropy ( ) Entropy (S) is a measure of disorder in a system – Nature likes to create disorder (i.e., ΔS > 0) – Larger entropies mean that more energy.
Differential Scanning Calorimetry (4.6) Differential scanning calorimetry (DSC) is a way of measuring energy changes associated with physical transitions.
Chapter 19: Thermodynamics and Equilibrium Chemistry 1062: Principles of Chemistry II Andy Aspaas, Instructor.
ENTROPY Measure of: Level of disorder in a system or Number of Microscopic Energy Levels Available to a Molecule (i.e. microstates)
Chemical Equilibrium By Doba Jackson, Ph.D.. Outline of Chpt 5 Gibbs Energy and Helmholtz Energy Gibbs energy of a reaction mixture (Chemical Potential)
CHE 116 No. 1 Chapter Nineteen Copyright © Tyna L. Meeks All Rights Reserved.
Chemical Change: Energy, Rate and Equilibrium Thermodynamics: study of energy, work and heat Kinetic energy: energy of motion Potential energy: energy.
Chapter 20 Energy and Disorder.
Thermodynamics. Free Energy When a system changes energy, it can be related to two factors; heat change and positional/motion change. The heat change.
 State Function (°)  Property with a specific value only influenced by a system’s present condition  Only dependent on the initial and final states,
Intro to Energy Changes and Rates of Reaction – Section 5.1, 5.3 Thermodynamics – the study of energy and energy changes Thermochemistry – the study of.
Gibbs Free Energy Third Law of Thermodynamics Standard Molar Entropy (S°) Gibbs Free Energy Equation.
Prentice Hall © 2003Chapter 19 Chapter 19 Chemical Thermodynamics CHEMISTRY The Central Science 9th Edition David P. White.
Chemical Thermodynamics  2009, Prentice-Hall, Inc. First Law of Thermodynamics You will recall that energy cannot be created nor destroyed. Therefore,
Chapter 19 Chemical Thermodynamics Entropy, Enthalpy, and Free Energy.
Thermodynamics (the other part) Topic 19 in Red Book Chapter 16 in textbook.
Chapter 19: Thermodynamics First Law of Thermodynamics: energy cannot be created or destroyed -total energy of the universe cannot change -you can transfer.
1 Chemical Thermodynamics 2 kinetics (little k): told us how fast a RXN would go and indicated a mechanism. Equilibria (big K): told us to what extent.
Energy Changes in Chemical Reactions -- Chapter First Law of Thermodynamics (Conservation of energy)  E = q + w where, q = heat absorbed by system.
Reaction Spontaneity. 1. Spontaneous Process First Law of Thermodynamics- “Conservation of Energy” – Energy can change form but it cannot be created or.
Entropy and Free Energy Thermodynamics: the science of energy transfer – Objective: To learn how chemists predict when reactions will be product-favored.
Chapter 17 Notes1 Chapter 17 Thermodynamics: Entropy, Free Energy and Equilibrium 1. review of terms; definitions; 2. Is it spontaneous? 3. entropy; some.
Chemical Thermodynamics The concept of chemical thermodynamics deals with how the enthalpy change and entropy change of a chemical reaction are related.
Chapter 23 Thermodynamics What is the driving force for every process in the universe?
© 2014 Pearson Education, Inc.. Describe to your partners the relationship between  G and the spontaneity of a reaction. For a chemical reaction,
1 Vanessa N. Prasad-Permaul Valencia College CHM 1046.
SPONTANEOUS REACTIONS. Spontaneity 1 st Law of Thermodynamics- energy of the universe is ________. Spontaneous Rxns occur without any outside intervention.
Chemistry 18.4.
Entropy Chapter 16-5.
Chapter 19 Chemical Thermodynamics
Cellular Energy and Metabolism
Figure 6.1 The complexity of metabolism
Entropy and Free Energy
Chapter 4 CHM 341 Fall 2016.
THE 2ND LAW OF THERMODYNAMICS:
Order Changes in a Chemical Reaction
Presentation transcript:

Thermodynamics the study of energy transformations and transfer THREE QUESTIONS to be addressed: 1. Will a reaction occur when two substances are mixed together? 2. What energy changes are associated with a spontaneous reaction? 3. What concentration of reactants and products will be established at equilibrium?

system surroundings energy transfer energy transformations In chemistry the system will be a chemical or physical change.

Laws of Thermodynamics 1st - the total amount of energy in the universe is constant (energy is conserved) 2nd - in any spontaneous change the entropy of the universe increases 3rd - the entropy of any pure, perfect crystalline solid at absolute zero is equal to zero

Thermodynamic quantities Entropy Enthalpy Free Energy Relate to the Equilibrium Constant

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2025 SlidePlayer.com. Inc. All rights reserved.