chemical equilibrium Flashcards
when equilibrium lies to the right-
more products than reactants, -G forward
when equilibrium lies to the left-
more reactants than products, +G forwards
K<1
lies left
K>1
lies right
K (and Q) expression
K= products/ reactants
NO SOLIDS OR LIQUIDS
Manipulation of k expression
1) reversal
K=1/K
2) Multiplying
K=K^n
3) Dividing
K=K^r/n
what does RICE stand for
Reaction, initial, change, equilibrium
Right shift
reactants decrease, K>Q
left shift
Reactants increase, K<Q
equation for delta G
G=-RT ln K
(R=8.314 J/k*mol)
shift when increasing reactant molarity
right
shift when decreasing reactanr molarity
lefy
shift when increasing product molarity
left
shift when decreasing product molarity
right
+H
Endothermic, heat is a reactant
-H
exothermic, heat is a product
shift when increasing +H temp
right
shift when decreasing +H temp
left
shift when increasing -H temp
left
shift when decreasing -H temp
right
shift when increasing pressure with noble gas
no shift
increase pressure by reducing volume
away from side with more moles of gas
decrease pressure by increasing volume
towards side with more moles of gas
