`8` mol of gas `AB_(3)` are introduced into a `1.0 dm^(3)` vessel. It dissociates as `2AB_(3)(g) hArr A_(2)(g)+3B_(2)(g)`
At equilibrium, 2 mol of `A_(2)` is found to be present. The equilibrium constant for the reaction is

Options

A. 72
B. 36
C. 3
D. 27

Answer

D