1.

The values of heat of formation of SO_(2) and SO_(3)are -298.2 kJ and -98.2 kJ. The heat of reaction of the following reaction will be SO_(2)+(1)/(2)O_(2)rarrSO_(3)

Answer»

`-200` kJ
`-356.2` kJ
`+200 kJ`
`-396.2 kJ`

Solution :`S+O_(2)rarrSO_(2)""DeltaH=-298.2 kJ"...(i)"`
`SO_(2)+(1)/(2)O_(2)rarrSO_(3)""DeltaH=-98.2 kJ"...(ii)"`
eq. (ii) - (i) and FIND the required result.


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