Question

K CONSTANT EQUILIBRIUM

What does it mean when K=1 and when K= 0

Answer 1

When K = 1 it means amount of reactants and products will be the same or intermediate i.e reaction is in equilibrium condition.

Let's take an example to understand in easy way

suppose a reaction:

aA + bB —> cC+ dD

so, the equilibrium constant for the above reaction is,

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

but when K = 1

it means 1 =  [C]^c [D]^d/[A]^a [B]^b

   [A]^a [B]^b =  [C]^c [D]^d

Therefore, from the above equation we can see that amount of reactants is same as the amount of products i.e. reaction is in equilibrium condition.

And when K = 0 it means reaction is not proceed or we can say that the formation of product is zero.

Let's take an example

the reaction is :

aA + bB —> cC+ dD

so, the equilibrium constant for the above reaction is,

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

but when K = 0

it means the product term is zero that's by K is 0.

So from above the equation we can say that reaction is not proceed or amount of product is 0.

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