Module 15 Flashcards
State Le Chatelier’s principle
When a stress is applied to an equilibrium, the reaction will shift so that stress is relieved and equilibrium restored.
chemical equilibrium
when both the forward and reverse reactions have equal rates
the amounts of each substance will not change, despite the fact that both reactions still proceed
When K is large, the equilibrium is weighted
toward the products side of the equation
When K is small, the equilibrium is weighted
toward the reactants side of the equation
When K is near unity, the equilibrium is
balanced between the reactants and products
When a solid appears in a chemical equilibrium,
it is not included in equation (15.2)
When a liquid (not aqueous) appears in a chemical equation,
we do not include it in equation (15.2)
Le Chatelier’s principle ignores
solids and liquids as a source of stress to the equilibrium
When an equilibrium is subjected to an increase in pressure, it will
shift away from the side with the largest number of gas molecules
When an equilibrium is subjected to a decrease in pressure, it will
shift toward the side with the largest number of gas molecules
if there are no gases in the equation or if the number is equal on both sides
nothing will happen
when temp is raised,
an equilibrium will shift away from the side of the equation that contains energy
when temp is lowered
the reaction will shift toward the side that contains energy
acid ionization reaction
the reaction in which an H+ separates from an aid molecule so that it can be donated in another reaction
If the ionization constant of an acid is large,
the acid is considered a stong acid
