Sulfur trioxide decomposes to sulfur and oxygen.
2SO3(g) → 2S(s) + 3O2(g) ΔH = +790 kJ
a. Is the reaction endothermic or exothermic?
b. How many kilojoules are required when 1.5 mol of SO3reacts?
c. How many kilojoules are required when 150 g of O2 is formed?
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