The Compound Carbon Suboxide, C₃O₂, Is a Gas at Room

question 45

Multiple Choice

The compound carbon suboxide, C₃O₂, is a gas at room temperature. Use the data supplied to calculate the heat of formation of carbon suboxide. (Data: 2CO(g) + C(s) → C₃O₂(g) ΔH° = 127.3 kJ/mol
And: ΔH_f° of CO(g) = −110.5 kJ/mol)

• A)116.8
• B)−93.7
• C)227.8
• D)−348.3
• E)93.7

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