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22 Cards in this Set

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Equilibrium
Rate of forward reaction equals to rate of reverse reaction
Keq
products/reactants
coefficients are exponents
solids not included
Keq<1
reaction favors reactants
Keq = 1
equilibrium
Keq>1
reaction favors products
Reaction quotient
Q, same as Keq w/out equilibrium
Q<Keq
reaction proceeds in forward directon
Q=Keq
equilibrium
Q>Keq
reaction proceeds in reverse direction
Le Chateliers Principle
If stress is applied to system, equilibrium will shift to relieve stress
Adding product
shifts equilibrium to the left
Removing product
shifts equilibrium to the right
Adding reactant
shifts equilibrium to the right
Removing reactant
shifts equilibrium to the left
Decreasing volume
Increasing pressure, favors side with the lower total # of moles of gas
Increasing volume
Decreasing pressure, favors side with the greater # of moles
Increase temperature
exothermic - shifts to left
Decrease temperature
exothermic - shifts to right
Ion product
reaction quotient for solubility reaction, Qsp
Qsp<Ksp
more salt can be dissolved
Qsp=Ksp
solution is saturated
Qsp>Ksp
excess salt will precipitate