Shared Flashcard Set

Details

Chemical Equilibrium
Part of the Chemistry Review
13
Chemistry
Undergraduate 4
01/05/2017

Additional Chemistry Flashcards

 


 

Cards

Term
mass action expression
Definition
a comparison between the relative amounts of products to reactants
Term
equation for the mass action expression
Definition
Q = [prod]νp / [react]νr Q = rxn quotient brackets are molar conventrations ν = stoichiometric coefficients
Term
what's omitted from mass action expressions?
Definition
the amounts of pure liquids and solids are omitted from the mass action expression
Term
how are gaseous species represented in mass action expressions?
Definition
gaseous species are usually included in terms of their par tial pressures
Term
equilibrium constant (Keq)
Definition
the value that Q takes when equilibrium has been reached
Term
equilibrium
Definition
the point when a reaction seems to stop; the point when forward and reverse reactions occur at the same rate
Term
how reactions occur regarding Q and K
Definition
reactions proceed in such a way that Q approaches K
Term
reaction that happens when Q < K
Definition
forward
Term
reaction that happens when Q > K
Definition
reverse
Term
Le Châtellier's principle
Definition
a description of how a system at equilibrium reacts to outside stimuli in order to re-achieve equilibrium
Term
what rxn occurs when reactant is added?
Definition
forward
Term
what rxn occurs when product is added?
Definition
reverse
Term
what rxn occurs when product is removed?
Definition
forward
Supporting users have an ad free experience!