Consider these equations:
\( S(s)+O_{2}(g)\rightarrow SO_{2}(g) \) \( \Delta H^{\ominus}=x~kJ~mol^{-1} \)
\( 2SO_{2}(g)+O_{2}(g)\rightarrow 2SO_{3}(g) \) \( \Delta H^{\ominus}=y~kJ~mol^{-1} \)
What is the value of \( \Delta H^{\ominus} \), in \( kJ~mol^{-1} \), for this reaction?
\( S(s)+\frac{3}{2}O_{2}(g)\rightarrow SO_{3}(g) \)