Question

Sulfur dioxide combines with O2in the presence of a catalyst as represented by the equation
2SO2(g) + O2(g) 2SO3(g)
Suppose 0.10 mol of SO2 and 0.10 mol of O2 are added to a 1-L vessel. At equilibrium, which of the following conditions must be true?
A) [O2] = 2[SO3]
B) [SO2] = [O2]
C) [SO2] > [O2]
D) [SO2] < [O2]
E) [SO2] = [O2] = [SO3]

Answer

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