To find the ΔHrxn, we need to use the Hess's Law where we have to rearrange the given equations to get the desired reaction
Use the standard reaction enthalpies given below to determine ΔH°rxn for the following reaction:
2S(s) + 3O2(g) → 2SO3(g) ΔH°rxn = ?
Given: SO2(g) → S(s) + O2(g) ΔH°rxn = +296.8 kJ
2SO2(g) + O2(g) → 2SO3(g) ΔH°rxn = -197.8 kJ
a. -494.6 kJ
b. -692.4 kJ
c. -791.4 kJ
d. -98.8 kJ
e. -293.0 kJ
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