9Enthalpy Cycles Bond EnthalpiesMedium1 markSulfur can be oxidised to produce two different oxides.S(s)+O2(g)→SO2(g)ΔHf⊖=−297 kJ mol−1S(s)+1.5O2(g)→SO3(g)ΔHf⊖=−395 kJ mol−1What is the standard enthalpy change, ΔH⊖, of the reaction 2SO2(g)+O2(g)→2SO3(g)?A−196 kJ mol−1B−98 kJ mol−1C+98 kJ mol−1D+196 kJ mol−1Grade answerSolutionGrading criteria