Given the Thermochemical Equation 2SO₂ + O₂ $\rarr$ 2SO₃ $\Delta$ H°_rxn = -198 KJ/mol, What Is the Standard Enthalpy Change

question 84

Multiple Choice

Given the thermochemical equation 2SO₂ + O₂ $\rarr$ 2SO₃, $\Delta$ H°_rxn = -198 kJ/mol, what is the standard enthalpy change for the decomposition of one mole of SO₃?

• A)198 kJ/mol
• B)-99 kJ/mol
• C)99 kJ/mol
• D)396 kJ/mol
• E)-198 kJ/mol

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