Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Regarding Equilibrium Constant

  1. Aug 28, 2007 #1
    1. The problem statement, all variables and given/known data
    Not really a textbook question, but I've read from numerous sources that changing the concentration of the reactants/products won't change the equilibrium constant. Why isn't this contradictory?

    Assume the reaction:
    xX + yY <---> zZ
    where x,y,z are the coefficients of X,Y,Z

    Keq = [Z]^z/[X]^x[Y]^y

    So if I change the concentration of say, X, then won't Keq change by definition?
  2. jcsd
  3. Aug 28, 2007 #2


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    No. The constant will remain constant. The concentration of Z and/or Y will change accordingly to maintain the equality.
  4. Aug 28, 2007 #3
    Thanks a lot. That cleared it up for me.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook