Chapter 17 - Chapter 17 Chemical Equilibrium Basic...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 17: Chemical Equilibrium Basic Concepts -reversible reactions do not go to completion -they can occur in either direction -symbolically, this is represented as: aA (g) + bB (g) →←cC (g) + dD (g) -mixture is dynamic equilibrium -Chemical equilibrium exists when two opposing reactions occur simultaneously at the same rate -chemical equilibria are dynamic equilibria -molecules are continually reacting, even though the overall composition of the reaction mixture does not change -one example of a dynamic equilibrium can be shown using radioactive 131 I as a tracer in a saturated PbI 2 solution -simple one-step mechanism A (g) + B (g) →← C (g) + D (g) Rate f = k f [A][B] represents the forward rate Rate r = k f [C][D] represents the reverse rate Rate f = rate r The equilibrium constant: k f /k r =K c = [C][D]/[A][B] General reaction aA (g) + bB (g) →←cC (g) + dD (g) K c = [C] c [D] d /[A] a [B] b Products/reactants Less than 1, greater than 0 = fair number of reactants, very few products Greather than 20 = very few reactants, fair number of products
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern