question_answer

\[\text{9}\text{.2 g }{{\text{N}}_{\text{2}}}{{\text{O}}_{\text{4}}}\]is heated in a 1 L vessel till equilibrium state is established\[{{N}_{2}}{{O}_{4}}(g)2N{{O}_{2}}(g)\] In equilibrium state 50% \[{{\text{N}}_{\text{2}}}{{\text{O}}_{\text{4}}}\]was dissociated equilibrium constant will be(mol. wt. of \[{{\text{N}}_{2}}{{O}_{4}}=92\])

A)  0.1                                        

B)  0.4

C)   0.3                                       

D)  0.2