Attainment of the equilibrium `A(g)hArr2C(g)+B(g)`gave the following graph . Find the correct option .`(% dissociation=Fration dissoiatedxx100)`
A. At t=5 sec equilibrium has been reached and `K_(c)=40(mol//litre)^(2)`
B. At t=5 sec equilibrium has been reached and % dissciation of A is 20%
C. At t=5 sec equilibrum has been reached and % dissocition of A is 30%
D. none of these
