EQUILIBRIUM study guide.doc.pdf - Health Careers · AP...

This preview shows page 1 - 2 out of 2 pages.

The preview shows page 1 - 2 out of 2 pages.
Health Careers · AP Chemistry[Keep for Reference]13&16·Chemical Equilibria & Solubility EquilibriaSTUDY GUIDEUpon mixing reactants, rates of rxn changeuntil ...forward rate = reverse rateEQUILIBRIUM!!when equilibrium is established,concentrations of products and reactantsremain constant (not because reaction stops,but because rates of forward and reversereactions are the same)Write Equilibrium expressions forconcentration and pressure (Products overReactants)aA +bB + . . .rR +sS + . . .Kc=and for gases:Kp=Note: K has no units!!K > 1productsfavoredK < 1reactantsfavoredExcluded:solids; pure liquids; water(in aqueous solutions) because their[ ]’s do not change.Equilibrium constant for areversereaction K’ =the value of theforward reaction.Equilibrium constant when youmultiply through an equation – Raise Kto that power.If equation x 2 then K’ = K2.If equation x 1/2 then K’ =KWhen using Hess’s Law (adding eqnstogether):K overall = K1x K2Le Châtelier’s Principle: effect of

Upload your study docs or become a

Course Hero member to access this document

End of preview. Want to read all 2 pages?

Upload your study docs or become a

Course Hero member to access this document

Term
Fall
Professor
N/A
Tags
Chemistry, Solubility, Chemical reaction

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture