equilibria Flashcards
definition of dynamic equilibrium
dynamic equilibrium is a state in a reversible reaction within a closed system in which the forward and backwards reactions are continuing at the same rate, resulting in no net change in macroscopic properties (eg. concentration, partial pressure) of the reactants and products
graphs to represent equilibrium (2 types with 2 different axis)
check notes (one for concentration, mol dm-3, one for rate of reaction, mol dm-3 s-1)
LCP definition
when a system in equilibrium is subjected to a change, the system will react to counteract the change imposed so as to reestablish the equilibrium
what is Qc
at any given time, the reaction quotient Qc is the ratio of the concentrations of reactants and products raised to their stoichiometric ratios
check the definition of equilibrium constant Kc
relationship between Kf and Kb
reciprocals of each other
Kc for reaction with multiple smaller reactions
product of Kc for each reaction
Kc for reaction where the stoichiometric coefficients of a balanced equation are multiplied by a factor n
new Kc = K^n
when can water be excluded from the eqm constant
when water is used as a solvent (eg. in a reaction where everything is aqueous and water is a reactant, conc of water can be taken to be approx. constant as it is present in large amounts
definition of degree of dissociation
the fraction of reactant that has dissociated at a particular temperature
read through explanation of LCP for all types of changes
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