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Question
In the contact process for the manufacture of sulphuric acid give the equations for the conversion of sulphur trioxide to sulphuric acid.
Solution
In the contact process for the manufacture of sulphuric acid, the equations for the conversion of sulphur trioxide to sulphuric acid are
\[\ce{SO3 + H2SO4 -> H2S2O7}\] (oleum or pyrosulphuric acid)
\[\ce{H2S2O7 + H2O -> 2H2SO4}\]
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