At 1400 K, the Reaction 2 HBr (G) H₂

At 1400 K, the reaction 2 HBr (g) H₂ (g) + Br₂(g) has K c = 1.5*10^{- 5} .
Calculate the equilibrium concentration of H₂ in a 1.0 liter container initially containing 0.118 mol of HBr at 1400 K.

A) 0.118 M
B) 1.5×10 ^{- 5} M
C) 1.8×10 ^{- 6} M
D) 30 M
E) 4.5×10 ^{- 4} M