7.2.2

Deduce the extent of a reaction from the magnitude of the equilibrium constant.


Magnitude- the size or amount

These three reactions do not have any units because the number of moles between the products and the reactants will have no change [(c+d)-(a+b)= 0]

Deduce the extent of the reaction if Kc is

a. Significantly larger than 1

If Kc is significantly larger than 1 (Kc>>1) then the reaction is almost complete

b. Between 0.01 and 100

If Kc is between 0.01 and 100, this means that both products and reactants are present

c. Extremely small

If Kc is smaller than 1 (Kc<<1) the reaction takes a long time to occur (both forward and backward)