vocab quiz equlibrium

equilibrium

a dynamic state in which the rates of the forward reaction and reverse reactions are equal; no net change

equilibrium constant expression

the ratio of the concentrations of the products, raised to the power of their coefficients, over the reactants, raised to the power of their coefficients

equilibrium constant

keq; indicates the degree that a reaction proceeds in the forward direction

activity

molarity of a solution; partial pressures of a gas; and one for solids and liquids

product favored

at equilibrium, there are more products present than reactants; large keq

reactant favored

at equilibrium, there are more reactants present that products; small keq

Kp

equilibrium constant calculated from partial pressures of gases

Lechatliers principle

if a stress is applied to a system at equilibrium, the system will shift to reduce the stress

molarity

an expression of concentration; moles of solute per liters of solution(M)

reaction quotient

Q; measures the relative amounts of products and reactants present during a reaction at a particular point in time; if Q=K, reaction at equilibrium

electrolyte

a substance that produces ions when dissolved in water, and therefore, conducts electricity

strong electrolyte

ionic compounds that undergoes complete dissociation when dissolved in water

weak electrolyte

a compound that undergoes only partial dissociation when dissolved in water

dissociation

the separation of ions that occurs when an ionic compound dissolved

common ion effect

suppression of ionization of a weak electrolyte by the presence of a common ion from a strong electrolyte