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Question

Chemistry Question on Chemical Reactions of Alcohols Phenols and Ethers

Consider the following date
Heat of combustion of H2(g) = -241.8 kJ mol-1
Heat of combustion of C(s) = -393.5 kJ mol-1
Heat of combustion of C2H5OH(1) = -1234.7 kJ mol-1
The heat of formation of C2H5OH(1) is (-) ____ kJ mol-1 (Nearest integer)

Answer

The correct answer is: 278