Equilibrium Unit test

if a system at equilibrium experiences stress, what does it do?

shifts to reduce stress

if a reactant is added, what happens?

shifts towards products

if a product is removed, what happens?

shift towards products

if pressure increases, the reaction shifts…?

toward fewer gas molecules(moles)

if pressure decreases, the reaction shifts…?

toward more gas molecules

if both sides of a reaction have the same number of gas molecules, changing pressure will…?

causes no shift

if the reaction A+B arrows+heat, the reaction is…?

exothermic

if temperature increases in an exothermic reaction, the system shifts….?

left (towards reactants)

if temperature decreases in an exothermic reaction, the system shifts…?

right

cooling a system means..?

removing heat

if heat is on the reactants side and temp decreases, the system shifts…?

left

what does a catalyst do?

speeds up both forward and reverse reactions

a catalyst changes…?

reactions speed only

why does equilibrium require a closed system?

to prevent matter from escaping

at equilibrium

forward and reverse rates are equal