Chemical Thermodynamics Example Assume vapor pressure of the - PowerPoint PPT Presentation

Dec 06, 2022 •509 likes •602 views

Chemical Thermodynamics Example Assume vapor pressure of the components in solution can be represented by a 2 * X P X P e 2 1 1 1 a 2 * X P X P e 1 2 2 2 What is the relationship between a and b ?

Chemical Thermodynamics
Example Assume vapor pressure of the components in  solution can be represented by a  2 * X P X P e 2 1 1 1 a  2 * X P X P e 1 2 2 2 What is the relationship between a and b ?  Chemical Thermodynamics CEM 484 2
Activities Hide all non-ideal aspects in activity coefficient  Chemical Thermodynamics CEM 484 3
Activities For a dilute solution of solute j in solvent i:  Chemical Thermodynamics CEM 484 4
Activities Common concentration units can be written in  terms of activity. Molality  Molarity  Chemical Thermodynamics CEM 484 5
Chemical Equilibrium For a generic chemical reaction, define the extent  of reaction. Look at Gibbs free energy as a function of reaction  extent. Chemical Thermodynamics CEM 484 6
Chemical Equilibrium Derivative of Gibbs free energy relative to reaction  extent can help define the location of equilibrium. Chemical Thermodynamics CEM 484 7
Chemical Equilibrium Continued ….  Results in the equilibrium constant, K.  Chemical Thermodynamics CEM 484 8

Recommend

Thermodynamics Slide 3 / 93 Slide 4 / 93 First Law of Thermodynamics Chemical Thermodynamics

Slide 1 / 93 Slide 2 / 93 Thermodynamics Slide 3 / 93 Slide 4 / 93 First Law of Thermodynamics Chemical Thermodynamics Recall a system is a portion of the universe that has been The Golden Gate Bridge is painted regularly to slow chosen for

530 views • 21 slides

Thermodynamics Slide 3 / 93 Slide 4 / 93 First Law of Thermodynamics Chemical Thermodynamics

720 views • 16 slides

Chemical Thermodynamics Thermochemistry Start looking at techniques for chemical systems

Chemical Thermodynamics Thermochemistry Start looking at techniques for chemical systems undergoing change. Focus on constant pressure processes Evaluate using tabulated heat capacities Chemical Thermodynamics CEM 484 2

492 views • 9 slides

Chemical Thermodynamics D G Chemical potential At equilibrium chemical potentials are

Chemical Thermodynamics D G Chemical potential At equilibrium chemical potentials are equivalent. Chemical Thermodynamics CEM 484 2 Clapeyron Equation Liquid-gas equilibrium Applies to all three equilibrium lines in phase

149 views • 10 slides

Chemical Thermodynamics Chemical Potential: gas Need chemical potential at arbitrary temperature

Chemical Thermodynamics Chemical Potential: gas Need chemical potential at arbitrary temperature and pressure. For an ideal gas: Chemical Thermodynamics CEM 484 2 Chemical Potential: liquid Liquids are a little more complicated.

571 views • 11 slides

10.40 Chemical Engineering Thermodynamics: a Multiscale Approach for the 21st Century Brief

10.40 Chemical Engineering Thermodynamics: a Multiscale Approach for the 21st Century Brief review of 1st and 2nd laws and empirical EOS property models Calculus of thermodynamics and the fundamental eqn of thermodynamics Classical

225 views • 6 slides

Thermodynamics Slide 3 / 93 Chemical Thermodynamics The Golden Gate Bridge is painted regularly

Slide 1 / 93 Slide 2 / 93 Thermodynamics Slide 3 / 93 Chemical Thermodynamics The Golden Gate Bridge is painted regularly to slow down the inevitable rusting of the iron on the bridge. In this unit you will study how heat and temperature

882 views • 31 slides

Chemical Thermodynamics Heat transfer battery Heat transfer, q, can be measured through

Chemical Thermodynamics Heat transfer battery Heat transfer, q, can be measured through calorimetry. Load bomb Measure T init Ignite Measure T final Constant Volume Chemical Thermodynamics CEM 484 2 Heat

391 views • 11 slides

Chemical Thermodynamics Examples Consider a simple gas phase equilibrium N 2 O 4 2 NO 2

Chemical Thermodynamics Examples Consider a simple gas phase equilibrium N 2 O 4 2 NO 2 What is K p at equilibrium assuming that the gases are ideal and T = 298K? Chemical Thermodynamics CEM 484 2 Examples Consider a simple gas

263 views • 7 slides

Chemical Carnot cycles, Landauers Principle, and the Thermodynamics of Natural Selection

Chemical Carnot cycles, Landauers Principle, and the Thermodynamics of Natural Selection Abstract It has seemed inescapable to many investigators from Brillouin and Schroedinger onward, that life should be understood as a chemical

973 views • 45 slides

6. Reaction Chemistry 6.1 Chemical Elements 6.2 Chemical Bonding 6.3 Chemical Reactions 6.4

6. Reaction Chemistry 6.1 Chemical Elements 6.2 Chemical Bonding 6.3 Chemical Reactions 6.4 Thermodynamics 6.5 Properties of Water 6.6 Important Biomolecules 6.1 Chemical Elements It is common for elements to exist as part of a larger

917 views • 53 slides

Introductory Chemical Engineering Thermodynamics By J.R. Elliott and C.T. Lira The fundamental

Introductory Chemical Engineering Thermodynamics By J.R. Elliott and C.T. Lira The fundamental property relation Piston+Cylinder Closed system dU =( Q + W ) dt For the heat exchange: Qdt = TdS (macroscopic definition) For the work Wdt =

508 views • 9 slides

Introductory Chemical Engineering Thermodynamics By J.R. Elliott and C.T. Lira Chapter 6 -

Introductory Chemical Engineering Thermodynamics By J.R. Elliott and C.T. Lira Chapter 6 - Engineering Equations of State II. Generalized Fluid Properties The principle of two-parameter corresponding states 50 50 40 40 30 30 T=705K 20

246 views • 13 slides

Introductory Chemical Engineering Thermodynamics By J.R. Elliott and C.T. Lira Chapter 11 -

Introductory Chemical Engineering Thermodynamics By J.R. Elliott and C.T. Lira Chapter 11 - Activity Models NONIDEAL SOLUTIONS When a solution does not follow the ideal solution approximation we can apply an EOS or the "correction

652 views • 28 slides

Second Law of Thermodynamics The First Law of Thermodynamics is a statement of the principle of

Second Law of Thermodynamics The First Law of Thermodynamics is a statement of the principle of conservation of energy. The Second Law of Thermodynamics is concerned with the maximum fraction of a quantity of heat that can be converted into work.

1.3k views • 83 slides

Introductory Chemical Engineering Thermodynamics Unit I. Earth, Air, Fire, and Water Chapter

Introductory Chemical Engineering Thermodynamics Unit I. Earth, Air, Fire, and Water Chapter 1: Introduction By J.R. Elliott and C.T. Lira A theory is the more impressive the greater the simplicity of its premises is, the more different

193 views • 8 slides

Introductory Chemical Engineering Thermodynamics Chapter 7 - Departure Functions By J.R.

Introductory Chemical Engineering Thermodynamics Chapter 7 - Departure Functions By J.R. Elliott, Jr. Internal Energy Departure Function ig V U U ig ( T,V ) = dV U ( T,V )- U

510 views • 13 slides

Introductory Chemical Engineering Thermodynamics Unit I. Earth, Air, Fire, and Water Chapter 2:

Introductory Chemical Engineering Thermodynamics Unit I. Earth, Air, Fire, and Water Chapter 2: Energy Balances By J.R. Elliott and C.T. Lira EC Work, Net Work, "Lost Work," Gradients, and Viscous Dissipation Consider a

361 views • 17 slides

Evolution and Thermodynamics Useful and Misleading Analogies Peter Schuster From Thermodynamics

Evolution and Thermodynamics Useful and Misleading Analogies Peter Schuster From Thermodynamics to Dynamical Systems Emmerich Wilhelms 60th Birthday Universitt Wien, 17.05.2002 Equilibrium thermodynamics is based on two major

689 views • 53 slides

Introductory Chemical Engineering Thermodynamics Elliott and Lira: Chapter 12 Liquid-Liquid

Introductory Chemical Engineering Thermodynamics Elliott and Lira: Chapter 12 Liquid-Liquid Equilibria By J.R. Elliott and C.T. Lira The Onset of Liquid-Liquid Instability Our common experience tells us that oil and water do not mix, even

686 views • 9 slides

Introductory Chemical Engineering Thermodynamics Chapter 9 - Introduction to Multicomponent

Introductory Chemical Engineering Thermodynamics Chapter 9 - Introduction to Multicomponent Systems By J.R. Elliott and C.T. Lira INTRODUCTION TO MULTICOMPONENT SYSTEMS The primary difference between pure and multicomponent systems is that we

171 views • 14 slides

Introductory Chemical Engineering Thermodynamics By J. Richard Elliott and Carl T. Lira Chapter

Introductory Chemical Engineering Thermodynamics By J. Richard Elliott and Carl T. Lira Chapter 8 Phase Equilibrium in a Pure Fluid Chapter 8 - Phase Equilibrium in a Pure Fluid 1 Example. Pressure in a Variable Volume Cylinder A

517 views • 7 slides

Chemical Thermodynamics Joule-Thompson Expansion Joule-Thompson expansion depends on non-ideal

Chemical Thermodynamics Joule-Thompson Expansion Joule-Thompson expansion depends on non-ideal characteristics of gases. Compare NH 3 and He in a Joule-Thompson expansion for P 1 =100 bar to P 2 =1 bar at an initial temperature of 260

490 views • 9 slides

Laws of Thermodynamics Thermodynamics: (developed in 19 th century) phenomenological theory to

Laws of Thermodynamics Thermodynamics: (developed in 19 th century) phenomenological theory to describe equilibrium properties of macroscopic systems based on few macroscopically measurable quantities thermodynamic limit (boundaries

978 views • 23 slides