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Given that (1)/(2)S(8)(s)+6O(2)(g)to4SO(...

Given that `(1)/(2)S_(8)(s)+6O_(2)(g)to4SO_(3)(g)`, `DeltaH^(@)=-1590 kJ`
The standard enthalpy of formation of `SO_(3)` is

A

`-1590 kJ mol^(-1)`

B

`-397.5 kJ mol^(-1)`

C

`-3.975 kJ mol^(-1)`

D

`+397.5 kJ mol^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
`DeltaH_(f)(SO_(3))=` heat of formation of `1` mole
`=(-1590)/(4)-397.5 kJ mol^(-1)`
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