Chemical EquilibriumHard

Question

2 mole each of SO3, CO, SO2 and CO2 is taken in a one lit. vessel. If KC for
            SO3(g) + CO(g) ⇋ SO2(g) + CO2(g) is 1/9 then

Options

A.total no. of moles at equilibrium are less than 8
B.n(SO3) + n(CO2) = 4
C.[n(SO2)/n(CO)] < 1
D.both (B) and (C).

Solution

SO3(g) + CO(g)  SO2 (g) + CO2 (g)        9 =
   2        2                 2         2   
2 + x     2+x             2-x      2-x         x = 1
neq = 3 + 3 + 1 + 1 = 8              n(SO3) + n(CO2) = 4  < 1
Therefore, (D) option is correct.

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