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

question 67

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) H° = 127.3 kJ/mol
And: H_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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