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The reaction SO(2)(g) +1//2O(2)(g) rar...

The reaction
`SO_(2)(g) +1//2O_(2)(g) rarr SO_(3)(g)` should be

A

Endothermic

B

Exothermic

C

`DeltaH = 0`

D

Unpredictable

Text Solution

Verified by Experts

`DeltaH = DeltaU + Deltan_(g)RT`
or `DeltaH ~~Deltan_(g)RT`
`Deltan_(g) = n_(P) - n_(R) =(1-(1+(1)/(2))) =- (1)/(2)`
`:.DeltaH =- ve` or exothermic
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