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Problem: Estimate the enthalpy change for the combustion of one mole of acetylene, C2H2, to form carbon dioxide and water vapor.             BE(C–H) = 456 kJ/mol             BE(C≡C) = 962 kJ/mol             BE(O=O) = 499 kJ/mol             BE(C=O) = 802 kJ/mol             BE(O–H) = 462 kJ/mol A)        –1010 kJ/mol                                     D)      –1759 kJ/mol B)      +653 kJ/mol                                         E)      –155 kJ/mol C)       +1010 kJ/mol  

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Estimate the enthalpy change for the combustion of one mole of acetylene, C2H2, to form carbon dioxide and water vapor.

            BE(C–H) = 456 kJ/mol

            BE(C≡C) = 962 kJ/mol

            BE(O=O) = 499 kJ/mol

            BE(C=O) = 802 kJ/mol

            BE(O–H) = 462 kJ/mol

A)        –1010 kJ/mol                                     D)      –1759 kJ/mol

B)      +653 kJ/mol                                         E)      –155 kJ/mol

C)       +1010 kJ/mol

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