AP Chem 7.1 and 7.2

Equilibrium

the rates of the forward reaction are equal to the rates of the reverse reaction and once equilibrium is achieved their concentrations remain constant

At equilibrium both__ __are present and their concentrations remain_______

reactants and products; constant

Examples of physical equilibrium reactions

phase changes, dissolving, filtrations

Examples of chemical equilibrium reactions

weak acid-base, redox rxns

If a rxn is reversed then the delta H

is also reversed

When rxn occurs in both directions, it refers to

reactants colliding to form products and products colliding to form reactants

Reactions rates are dependent on?

Concentration of the rxn

Faster forward rxn: describe what occurs

Products are being formed faster than reactants are being used up. It will gradually slow (more products formed)

Faster reverse rxn: describe what occurs

Products are turning into reactants faster than reactants are being turned into products, it will increase with a higher concentration of products (more reactants formed)

If a forward rxn is faster, it is

shifting right

if a reverse rxn is faster, it is

shifting left