PPT-7.3 The Equilibrium Constant:

Measuring Equilibrium Concentrations Equilibrium Calculations ICE Charts Qualitatively Interpreting the Equilibrium Constant Meaning of Small Equilibrium Constant SCH4U Grade 12 Chemistry University Preparation. Reactions are reversible. A + B C + D ( forward). C + D A + B (reverse). Initially there is only A and B so only the forward reaction is possible. As C and D build up, the reverse reaction speeds up while the forward reaction slows down.. AP . Chem. Mr. Nelson. The Concept of Equilibrium. The term . reversible reaction . is used to describe reactions that can go in either the forward or the reverse direction. Equilibrium. is used to specify that a reversible reaction has reached an . 15.3. Using Equilibrium Constants in Calculations. Bill Vining. SUNY Oneonta. Equilibrium and the Equilibrium Constant. In . this section…. Determining an equilibrium constant. Determining if a system is at equilibrium. True. False. A constant . non-zero net . force on an object will cause its velocity to change.. True. False. A constant non-zero net force applied to an object initially at rest will cause the object to move with . Lecture 8. How do deal with individual ions in aqueous solution?. We can’t simply add Na. . to a solution (positive ions would repel each other).. We can add . NaCl. . How do we partition thermodynamic parameters between Na. Honors . Chemistrry. Enloe. High School. Chemical Equilibrium. Condition which the concentrations of all reactants and products in a closed system cease to change with time. Occurs when opposing reactions are proceeding at equal rates. Lecture Presentation. Chapter 14. Chemical Equilibrium. Hemoglobin. Hemoglobin is a protein (Hb), found in red blood cells, that reacts with O. 2. . . It enhances the amount of O. 2. that can be carried through the bloodstream.. Department of Chemistry. University of Utah. Saturday, September 19, 2015. What is equilibrium?. Equilibrium is a . state of balance between opposing forces or actions that is either . static. (as in a body acted on by forces whose resultant is zero) or . James F. Kirby. Quinnipiac University. Hamden, CT. Lecture Presentation. The Concept of Equilibrium. . Chemical equilibrium. occurs when a reaction and its reverse reaction proceed at the same rate. In the figure above, equilibrium is finally reached in the third picture.. EQUILIBRIUM. We have seen that objects in Physics fall into two categories: those that are . in equilibrium. , and those that are . not in equilibrium. .. EQUILIBRIUM. We have seen that objects in Physics fall into two categories: those that are in equilibrium, and those that are not in equilibrium. In statistical physics we deal with macroscopic systems. Is is technically impossible to work with standard physical states (microstates). Technically we have at disposition tremendously reduced information, just values of a few macroscopic quantities, which define the . . Scalars and vectors. . Types of forces. . Resultant of forces. . Equilibrium of particles. Scalar and Vectors. . Scalar - . a physical quantity that is completely described by a real number. . When the rates of the forward and reverse reactions become equal, the concentrations of the reactants and the products remain constant. This is the stage of chemical equilibrium. This equilibrium is . Chemical System: . A system is described in terms of empirical properties such as . temperature, pressure, volume and amount of substance present.. By definition, all chemical systems are fast, quantitative, stoichiometric and spontaneous! However, this assumption is NOT always true..