Chemical EquilibriumHard
Question
At 727oC and 1.23 atm of total equilibrium pressure, SO3 is partially dissociated into SO2 and O2 according to SO3(g) ⇋ SO2(g) + 1/2O2(g). The density of equilibrium mixture is 0.9 gm/litre. The degree of dissociation is :
Options
A.1/3
B.2/3
C.l/4
D.1/5
Solution
SO3(g) ⇋ SO2(g) + 
O2(g) Mmix = 
= 60
1 - α α
Mmix = 
1 +
α =
O2(g) Mmix = = 601 - α α
Mmix = 1 +
α =
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