The equilibrium constant of the following are :
` " " {:(N_2+3H_2hArr 2NH_3, K_1),(N_2+O_2hArr 2NO , K_2) , (H_2+(1)/(2) O_2 to H_2O , K_3) :}`
The equilibrium constant (K) of the reaction :
` 2NH_3+(5)/(2) O_2 overset(k) hArr 2NO +3H_2O,` will be
(a)`K_1K_3^(3) //K_2`
(b)` K_2K_3^(3) //K_1`
(c)` K_2K_3//K_1`
(d)` K_2^(3) K_3//K_1`

Options

A. `K_1K_3^3//K_2`
B. `K_2K_3^3//K_1`
C. `K_2K_3//K_1`
D. `K_2^3K_3//K_1`

Answer

B