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If S +O(2) rarr SO(2), DeltaH =- 298.2 k...

If `S +O_(2) rarr SO_(2), DeltaH =- 298.2 kJ`
`SO_(2)+1//2O_(2) rarr SO_(3), DeltaH =- 98.7 kJ`
`SO_(3)+H_(2)O rarr H_(2)SO_(4), DeltaH =- 130.2 kJ`
`H_(2) +1//2O_(2) rarr H_(2)O, DeltaH =- 287.3 kJ`
Then the enthalpy of formation of `H_(2)SO_(4)` at `298K` is

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