PPT-Chemical Equilibrium

Author Wesley Tung Technical Things A chemical equation of a reaction uses mole ratios to describe the production of products from reactants In hydrogen and oxygen are reactants and water is a product. Chemical Butyl Acetate Chemical Butylated Hydroxytoluene Chemical Coal ar Chemical Cocamide DEALauramide DEA Chemical Diazolidinyl Urea Chemical Ethyl Acetate Chemical Formaldehyde Chemical P MICROECONOMICS. Principles and Analysis. . Frank Cowell . Almost essential . A Simple Economy. Useful, but optional. Firm: Optimisation. Consumer Optimisatio. n. Prerequisites. July 2015. 1. Note: the detail in slides marked “ * ” can only be seen if you run the slideshow. 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.. Graph of Gradual Evolution. http://anthro.palomar.edu/synthetic/images/graph_of_phyletic_gradualism.gif. Some biologists claim that most evolutionary change takes place as a result of a series of very small changes . A . reversible reaction . can be approached from either direction. In a . closed system. , no reactants or products can enter or escape. For equilibrium to be achieved, a reaction must be . reversible. Measuring Equilibrium Concentrations. Equilibrium Calculations (ICE Charts). Qualitatively Interpreting the Equilibrium Constant. Meaning of Small Equilibrium Constant. SCH4U – Grade 12 Chemistry, University Preparation. Intended Student Learning. Must be able to describe the dynamic nature of a chemical system at equilibrium. Must be able to write . K. c. expressions that correspond to given reaction equations. Perform calculations involving . At equilibrium, the number of. people riding up the lift and the. number of people skiing down . the slope . are constant.. Learning Goal . Calculate the equilibrium constant for a reversible reaction given the concentrations of reactants and products at equilibrium.. This web quiz may appear as two pages on tablets and laptops.. I recommend that you view it as one page by clicking on the open book icon at the bottom of the page.. 3c – Market Equilibrium - Macro. 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. The State of Chemical Equilibrium. Chemical Equilibrium. : The state reached when the concentrations of reactants and products remain constant over time.. 2 NO. 2. (. g. ). N. 2. O. 4. (. g. ). Brown. The Haber process proceeds as follows:. . 2NH. 3 (g). + 92KJ ↔ N. 2 (g). + 3H. 2 (g) . . If the equilibrium concentrations are:. [NH. 3. ] = 3.1x10. -2. M. [N. 2. ] = 8.5x10. -1. M. [H. 2. . 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..