Problem: Combustion reactions involve reacting a substance with oxygen. When compounds containing carbon and hydrogen are combusted, carbon dioxide and water are the products. Using the enthalpies of combustion for C4H4 (–2341 kJ/mol), C4H8 (–2755 kJ/mol), and H2 (–286 kJ/mol), calculate ΔH for the reaction C4H4(g) + 2 H2(g)  → C4H8(g) 

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The combustion reactions for C4H4, C4H8 and H2 are as follows:

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Problem Details

Combustion reactions involve reacting a substance with oxygen. When compounds containing carbon and hydrogen are combusted, carbon dioxide and water are the products. Using the enthalpies of combustion for C4H4 (–2341 kJ/mol), C4H8 (–2755 kJ/mol), and H2 (–286 kJ/mol), calculate ΔH for the reaction

 C4H4(g) + 2 H2(g)  → C4H8(g) 

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