Equilibrium QQ Trade Flashcards
(27 cards)
If concentration of a substance is increased, which direction will the reaction go?
Away from the substance
When Ksp value is small what does this mean?
salt is not very soluble
What does ICE stand for?
initial, change, and equilibrium
what does ksp stand for?
solubility product constant
what happens to the solubility of a salt when a common ion is added?
solubility of the salt decreases
when a common ion is added to a salt which direction is favoured to regain equilibrium?
reverse reaction
when pressure is increased, which direction will the reaction go?
from more moles to less moles
two conditions for chemical equilibrium to be achieved are:
closed system and equal rates of forward and reverse reactions
which reaction is always favoured by an increase in temperature?
endothermic
for solubility equilibrium when is equilibrium attained?
rate of dissolution = rate of precipitation
when equal volumes of solution are mixed what happens to the concentration of each?
it is halved
when is q useful? when do you have to calculate q?
when all concentrations are given
what values are the only values that can be in the equilibrium expression?
concentrations at equilibrium
which equilibrium is a state of balance with movement
dynamic
which law looks at equilibrium qualitatively?
Le Chateliers principle
what is the equilibrium law?
ratio of [products] to [reactants] is a constant
what happens to the value of K when you reverse a reaction?
it is the reciprocal (1/k)
what are three factors that affect equilibrium?
Concentration, pressure, temperature
when two solutions are mixed, when do you get a precipitate formed?
when Qsp>ksp
which two state symbols are not included in the equilibrium law?
solids and liquids
what is used to determine the direction of the reaction?
reaction quotient
which reaction is favoured if q<k?
forward reactionw
what is the definition for ksp?
product of ions in solution
what type of salts does solubility equilibrium apply to?
sparingly soluble salt
