IB Chemistry Topic 7: Equilibrium

dynamic equilibrium

when the reaction is constantly going on both ways

static equilibrium

when the reaction ceases once equilibrium is established

homogeneous reaction

a reaction in which all the reactants and products are in the same place

for reaction

aA + bB ⇌ cC + dD

what is the equilibrium constant?

what does it mean of the value of the equilibrium constant is much greater than one?

then the position of equilibrium lies very much on the products side, and the mixture contains virtually all products

Le Chatelier's principle states that ____?

if a dynamic equilibrium is distributed by changing the conditions, the position of equilibrium moves to counteract the change

what happens to the equilibrium when you change the pressure on a gaseous reaction?

increasing the pressure will move the position of equilibrium to the side with the least volume

what happens to the equilibrium when you increase the temperature of a reaction?

If the reaction is exothermic then increasing the heat will cause less products to be formed, if the reaction is endothermic then increasing the increasing the heat will cause a greater amount of product

what happens to the equilibrium when you add a catalyst to the reaction?

has no affect on the position of the equilibrium but the equilibrium is achieved faster