9.2 grams of `N_(2) O_(4)` (g) is taken in a closed one litre vessel and heated till the following equilibrium is reached `N_(2) O_(4) (g) harr2NO_(2) (g)`. At equilibrium, 50% `N_(2) O_(4)` (g) is dissociated. What is the equilibrium constant (in `mol litre^( –1)` ) (molecular weight of `N_(2) O_(4)` = 92)

Options

A. 0.1
B. 0.4
C. 0.2
D. 2

Answer

C