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In the reaction CS(2)(l)+3O(2)(g)rarrCO(...

In the reaction `CS_(2)(l)+3O_(2)(g)rarrCO_(2)(g)+2SO_(2)(g)DeltaH= -265 kcal`
The enthalpies of formation of `CO_(2)` and `SO_(2)` are both negative and are in the ratio `4:3`. The enthalpy of formation of `CS_(2)` is `+26 kcal//mol`. Calculate the enthalpy of formation of `SO_(2)`.

A

`-90 kcal//mol`

B

`-52 kcal//mol`

C

`-78 kcal//mol`

D

`-71.7 kcal//mol`

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The correct Answer is:
D
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