equlibrium constant, Kc, for homogeneous systems

what does the law of chemical equilibrium state

the direction taken by a reaction is dependent not only on the mass of the various components of the reaction but also upon the concentration

what does Kc represent

equilibrium constant

what is Kc calculated from

the concentration of the reactants and the products

what is the units

mol dm-3

what happens to the value of Kc if the temperature changes

it will also change

for the reaction aA + bB ⇌ cC + dD write the Kc expression

Kc = [C]^c[D]^d / [A]^a[B]^b

example 1 2 3

if Kc has units what is this ebacuse

there are an equal number of moles on both sides of the equation

what will these moles do to each other

they will cancel each other out in the K c expression

attempt example 4 5 6 7 8 9 10 11 12

what is the only thing that will effect the value of the equilibrium constant

temperature

when the temperature change causes an increase in the concentration of products and a decrease in the concentration of reactants how will this effect the value of Kc

it will increase the Kc value

if the temperature change causes there to be a decrease in the concentration of products and an increase in the concentration of reactants how will this effect the value of Kc

it will decrease the value of Kc

attempt example 14 15 16 and 17