Lecture 11/17/07 CHE132: General Chemistry II Dr. Jimmy Hauri.

Slides:

Advertisements

Similar presentations

When do you use this? You use Keq to find the concentration of a reversible reaction at equilibrium. You use Q to find the concentration of a reversible.

Advertisements

Results - Equilibrium lab. (1) Curve (1) # transfers on x-axis (1) lines meet (1) Volume on y-axis (1) Title Total: /5.

Chemical Equilibrium Unit 2.

The Equilibrium Law.

 Chemical Equilibrium When forward and reverse reactions are occurring under the same conditions and at the same rate  Static At rest; not changing.

Approaching Equilibrium Lesson 1. Approaching Equilibrium Many chemical reactions are reversible if the activation energy is low. Reactants ⇌ Products.

16-2: The Law of Chemical Equilibrium. Remember… Chemical equilibrium is achieved when the rate of the forward rxn is equal to the rate of the reverse.

EQUILIBRIUM. Many chemical reactions are reversible: Reactants → Products or Reactants ← Products Reactants form Products Products form Reactants For.

1 CHEMICAL EQUILIBRIUM. Chemical Equilibrium Chemical Reactions Types; What is equilibrium? Expressions for equilibrium constants, K c ; Calculating K.

CHEMICAL EQUILIBRIUM Qualitative Aspects. H 2 O (g) H 2(g) + 1/2 O 2(g) ä 1. The double arrow represents an equilibrium reaction. ä 2. The equation for.

Chemistry 130 Chemical Equilibrium Dr. John F. C. Turner 409 Buehler Hall

INTRODUCTION TO EQUILIBRIUM Kinetics Explains how chemical reactions take place and some of the factors that affect the reactions’ speed Equilibrium.

Section 8.1—Equilibrium What is equilibrium?. Reversible Reactions Reversible Reaction – A chemical reaction that can proceed in both direction (represented.

AA + bB cC + dD Equilibrium RegionKinetic Region.

Chemical Equilibrium Chapter 15. Equilibrium - state in which there are no observable changes with time Achieved when: rates of the forward and reverse.

Lecture 41/24/07 Quiz Friday. Manipulating K Multiply the equation by a constant Reverse equation Add equations.

Lecture 18/29/05 CHE131: General Chemistry I TSB 006 Dr. Jimmy Hauri.

Acid & Base Review Equilibrium Notes & Lab.  Objective:  Today I will be able to:  Explain how reversible reactions reach equilibrium  Model the process.

Lecture 11/19/05 CHE132: General Chemistry II Dr. Jimmy Hauri.

Regent ’ s Warm-Up A substance is classified as an electrolyte because (1) it has a high melting point (2) it contains covalent bonds (3) its aqueous.

Chapter 8: Chemistry in Industry. Introductory Activity What do you think a chemical engineer does? What do you think are a chemical manufacturer’s main.

Chem. 1B – 9/8 Lecture correction on slide #8. Announcements I Lab Announcements (see p. 9 of syllabus) for Wed. and Thurs. labs –Quiz I (on review topics,

Chemical equilibrium occurs when a reaction and its reverse reaction proceed at the same rate. Once equilibrium is achieved, the amount of each reactant.

Equilibrium: A State of Dynamic Balance Chapter 18.1.

Chemistry 1011 Slot 51 Chemistry 1011 TOPIC Gaseous Chemical Equilibrium TEXT REFERENCE Masterton and Hurley Chapter 12.

2 Minute Drill Pass forward your Lab Endothermic and Exothermic Reactions Quiz next Thursday. All Chemical Reaction Lectures to include Molar Mass Homework.

CHAPTER 13 AP CHEMISTRY. CHEMICAL EQUILIBRIUM Concentration of all reactants and products cease to change Concentration of all reactants and products.

Chapter 14: Chemical Equilibrium CHE 124: General Chemistry II Dr. Jerome Williams, Ph.D. Saint Leo University.

Chemical Systems and Equilibrium

The Concept of Dynamic Equilibrium – The Equilibrium Constant (K)

Warmup 1/14/16 Imagine we combine 2 chemicals and see a reaction. We know at first that chemicals are reacting and combining. But what happens if we wait.

11-6 Reaction Quotient Q And you. The reaction quotient Q is the same as the equilibrium K except that it uses initial concentrations instead of equilibrium.

Q is the reaction quotient Gives the condition of the reaction at any point during the reaction. [X] o indicates the initial concentration of a species.

LAW 531 Week 2 Quiz 531/LAW-531-Week-2-Quiz For more classes visit

Chapter 9 Chemical Equilibrium

CHE1031 Lecture 11: Chemical equilibrium

This is the Equilibrium arrow

Topic Dynamic equilibria Level GCSE and A Level Outcomes

Reactions and Equilibrium

THE EQUILIBRIUM CONSTANT CHAPTER 18 PAGES

Chapter 9 Reaction Rates and Chemical Equilibrium

Using Equilibrium Constants

Equilibrium: two opposing processes occurring at the same rate to achieve balance Players enter and leave the game, but… the same total number of players.

Dr. S. B Maulage Dept of Chemistry.

Chapter 14: Chemical Equilibrium

Unit 13: Solutions & Equilibrium

Typical Reaction: reactants  products

11.7 – NOTES Equilibrium.

Equilibrium Chemical Equilibrium.

Chemical Equilibrium A Balancing Act.

REVISION EQUILIBRIUM.

Lesson # 1 Equilibrium Systems

Chapter 16 Equilibrium.

Dynamic Equilibrium and the Equilibrium Constant

Approaching Equilibrium Lesson 1.

Chemical Equilibrium Chapter 11

Section 8.1—Equilibrium What is equilibrium?.

Chemical Equilibrium Chapter 14.2 & 14.3.

Dynamic Equilibrium.

Acid & Base Review Equilibrium Notes & Lab

LECTURE 9.4 – EQUILIBRIUM.

Chemical Equilibrium.

Determine the units for Kc.

Approaching Equilibrium Lesson 1.

• State le Chatelier’s principle.

Chemical Equilibrium.

Studio 9a 10/30/06.

Equilibrium Constant (Keq)

the reaction has to take place in a closed system i.e. a rigid closed

Presentation transcript:

Lecture 11/17/07 CHE132: General Chemistry II Dr. Jimmy Hauri

Honors lab is meeting this week Other labs start next week Pre-lab will be due

SYLLABUS

Quiz 1

A ⇆ B Rate based on: Constant Concentration

time A ⇆ B time A ⇆ B time A ⇆ B k f = ¼ k r = ½

Observations???

Rates (forward and reverse) are equal Concentrations stop changing Reactions are still going ‘dynamic equilibrium’ Independent of initial concentrations At Equilibrium

Rates are equal

Law of Mass Action