ap chem unit 7

LeChatlier’s Principle

when you are at equilibrium and you add a stress, the reaction compensates to get back to equilibrium

right

if Q<K, the reaction will shift

left

if Q>K, the reaction will shift

right

when adding reactant/removing product, the reaction will shift

left

when adding product/removing reactant, the reaction will shift

endothermic

increasing temperature favors the ________ direction

exothermic

decreasing temperature favors the ___________ direction

common ion effect

if there is a common ion in the solution already and you try to dissolve something into the same solution, less will dissolve

5% rule

assumes that because K is small, not a whole lot of the reaction takes place, and things with concentrations will not change