Kategoriak: All - stress - temperature - concentration - equilibrium

arabera Angel Peng 3 years ago

119

equilibrium systems

When a system in equilibrium is exposed to external stress, it undergoes changes to minimize the stress and establish a new equilibrium. This can involve shifts in the concentrations of reactants and products, as well as changes in temperature.

equilibrium systems

equilibrium systems

shift in directions that minimize stresses

restore a new equilibrium
exposed to external stress

decrease in temperature of the system

the system must shift

produce more energy

the exothermic reaction side is favored

an increase of the release of energy

increase of concentration of reactants

more collisions

reactant particles

the forward reaction is favored

an increase of products

the system reaches a new equilibrium

the equilibrium law

changes in temperature

the forward reaction is exothermic and temperature increases

K decreases

the system shifts to increase the reactant side (denominator)

the forward reaction is endothermic and temperature increases

K increases

the equilibrium constant "K" of the system changes

a new equilibrium is achieved with a new temperature of the system

the value of the equilibrium constant is only temperature dependent

the system shifts to increase the product side (numerator)

changes in concentration

the products are favored

K >> 1

the numerator of the fraction (products) is greater than the denominator

the reactants are favored

K << 1

the equilibrium constant "K" of the system remains the same

a new equilibrium is achieved with different concentrations of chemicals

the denominator of the fraction (reactants) is greater than the numerator