the expression obtained by multiplying the product concentrations and dividing by the multiplied reactant concentration, with each concentration raised to a power represented by the coefficient in the balanced equation
Back
equilibrium position
Front
a particular set of equilibrium concentrations
Back
equilibrium constant
Front
the value obtained when equilibrium concentrations of the chemical species are substituted in the equilibrium expression
Back
chemical equilibrium
Front
a dynamic reaction system in which the concentrations of all reactants and products remain constant as a function of time
Back
law of mass action
Front
a general description of the equilibrium condition; it defines the equilibrium constant expresssion
Back
homogeneous equilibrium
Front
an equilibrium system where all reactants and products are in the same phase
Back
Le Chatelier's principle
Front
if a change is imposed on a system at equilibrium, the position of the equilibrium will shift in a direction that tends to reduce the effect of that change
Back
reaction quotient Q
Front
a quotient obtained by applying the law of mass action to initial concentrations rather than to equilibrium concentrations
Back
heterogeneous equilibrium
Front
an equilibrium involving reactants and/or products in more than one phase