Answer to Question #185562 in General Chemistry for mike

Question

Consider the following equilibrium:

2NO(g)     +     O2(g)          2NO2(g) Keq   =   1.5

0.800 mole NO, 0.600 moles O2, and 0.400 moles NO2 are placed in a vessel that 2.0 L. 

(i). Show by calculation that the initial combination of all species does not represent an equilibrium?

(ii). What will happen to [O2] as equilibrium is approached?

Answer 1

Equilibrium= (0.800+ 0.600+0.400)÷3 =0.600

Volume of O2 decreases