Section 14.1- Reversible Reactions Flashcards
reactions that occur in only one direction is said to be
irreversible
reactions that can be made to go either direction– reactants to products or products to reactants
reversible reactions
the element hydrogen was discovered by
Sir Henry Cavendish
if the products are permitted to leave the solution, it
goes to completion (irreversible because the product is gone into the atmosphere)
when the reaction is open to the atmosphere
open system
the state of a system in which the rates of reaction in opposite directions become equal and there is no further change in the amounts or concentrations of the substances involved
chemical equilibrium
just because something is in chemical equilibrium, means the concentrations are not ______________________; it does not mean they are __________________–
not changing
equal
reactants to products is
forward reaction (decreases over time)
products to reactants is
reverse reaction (increases over time)
in equilibrium, the _____________ are equal, not necessarily the __________________
rates
concentration
at equilibrium, the reactions between products and reactants have not ceased; each just
exactly opposes one another
when the forward reaction and the reverse reaction equal each other and are continually occurring
dynamic equilibrium
when the number of product molecules at equilibrium far exceeds the number of reactant molecules, the reaction is said to lie ____________________ or to be
toward the right
be favored in the direction written
cases when only a relatively small number of product molecules form, and most the reactant molecules remain are said to lie _________________ or be
toward the left
unfavored as written
