With a particular catalyst and at a given temperature, the oxidation of naphthalene to phthalic anhydride proceeds as follows:

What reactor type gives the maximum yield of phthalic anhydride? Roughly estimate this yield and the fractional conversion of naphthalene which will give this yield. Note the word "roughly".

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A R3 2ST A = naphthalene R = naphthaquinone S = phthalic anhydride T= oxidation products k₁ = 0.21 s-1 k₂ = 0.20 S-1 k3 = 4.2 s-1 k4 = 0.004 S-1