What Is the Change in Enthalpy When 9

question 71

Multiple Choice

What is the change in enthalpy when 9.00 mol of sulfur trioxide decomposes to sulfur dioxide and oxygen gas?
2SO₂(g) + O₂(g) → 2SO₃(g) ; ΔH° = 198 kJ

• A)891 kJ
• B)-198 kJ
• C)-891 kJ
• D)198 kJ
• E)1782 kJ

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