Determine △_rH° for the Decomposition of Hydrogen Peroxide

question 32

Multiple Choice

Determine △_rH° for the decomposition of hydrogen peroxide.
H₂O₂(l) →1/2 O₂(g) + H₂O(l)
Given: H₂(g) + O₂(g) → H₂O₂(l) △_rH° = -187.78 kJ/mol
H₂(g) + 1/2 O₂(g) → H₂O(l) △_rH° = -285.83 kJ/mol

• A)-98.05 kJ/mol
• B)+93.89 kJ/mol
• C)-191.94 kJ/mol
• D)-93.89 kJ/mol

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