Question

I’m curious we know small reactants and large products k>>1 and when large reactants ans small product k<<1. Can you tell me a specific example where k=1?

Answer 1

Ans :

K is the equillibrium constant for a reaction. It is expressed as the ratio of concentration of products over the concentration of reactants at equillibrium.

So when the concentration of products is more than that of reactants , the numerator is larger and hence the value of K is more than 1 .

When the concentration of reactants is more than products , K is less than 1 .

Now when the concentrations of reactants and products are same , the value of K becomes equal to 1.

For example in a reaction : 2Na + Cl2 = 2NaCl , the value of K will be given as :

K = [NaCl]² / [Na]² [Cl2]

so if the number of moles of each Na , Cl2 and NaCl is 1

K = (1)² / (1)² (1)

= K =1