Pure S is burned with 20% excess air based on conversion to SO, 30% of the sulfur forms SO3, the remainder forms SO2, a) What is the analysis of the burner gases? b) The burner gas is passed through a converter. If the gases leaving the coverter have a mole fraction of 0.043 free O2, what is the ratio of SO3, to SO2, in them. c) What amount of sulfuric acid is produced if 30% of sulfuric acid is supplied in stoichiometric amount to the S03 produced.

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