Chapter 17-Equilibrium - Review of Equilibria Chapter 17...

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

View Full Document Right Arrow Icon
Review of Equilibria – Chapter 17 What doesit mean when a systemis in equilibrium? If a systemat equilibrium is perturbed, what happensto the system? At equilibrium, the ratio of the product concentration(s) to the reactant concentration(s), each raised to the power of their stoichiometric coefficients, is equal to a constant, the equilibrium constant, K. aA + bB cC + dD K = c d a b [C] [D] [A] [B] and for 2aA + 2bB 2cC + 2dD K’ = K 2 cC + dD aA + bB K’ = 1/K = K -1 1. The value of K a. is unique for each reaction. b. is determined experimentally based on the concentration of all players at equilibrium. c. is temperature dependent. d. includesall constant terms; therefore in heterogeneous equilibria, solids and liquids won’t appear in the expression. e. gives insight to the extent of reaction. f. can be used to determine equilibrium amounts. 2. Since the ratio of the product and reactant concentrations is constant, if the one concentration changes then the concentration of the other(s) must change. 3. Equilibrium constants specify the type of equilibrium involved: K c : the equilibrium constant in terms of concentration K p : the equilibrium constant in terms of pressure and K p = K c (RT) n K a : the equilibrium constant for weak acid equilibria K
Image of page 1

Info icon This 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