Given the reaction between 2 gases represented by `A_2` and `B_2` to give the compound `AB(g)` is `A_2(g)+B_2(g) hArr 2AB(g)`. At equilibrium, concentration of `A_2=3.0xx10^(-3)(M)`. If the reaction takes place in a sealed vessel at `527^(@)C`, then value of `K_c` will be-

Options

A. 1.9
B. 0.62
C. 4.5
D. 2

Explanation

`K_c=([AB]^2)/([A_2][B_2])=((2.8xx10^(-3))^2)/((3xx10^(-3))(4.2xx10^(-3))=0.62`