In reaction H_2 + I_2 hArr 2HI, at equilibrium the concentration of products is double than reactants then what is the value of K_c ?

In reaction H_2 + I_2 hArr 2HI, at equilibrium the concentration of pr

1.	In reaction H_2 + I_2 hArr 2HI, at equilibrium the concentration of products is double than reactants then what is the value of K_c ?
Answer» 2 4 `1/4` `1/2` ANSWER :B