a. Draw an enthalpy cycle to calculate the enthalpy change of formation of ethanol, C 2 H

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a. Draw an enthalpy cycle to calculate the enthalpy change of formation of ethanol, C2H5OH, using enthalpy changes of combustion.

b. Calculate a value for ΔHϴ[C2H5OH(l)] using the following data:

ΔHϴc[C(graphite)] = –393.5 kJ mol–1

ΔHϴc [H2(g)] = –285.8 kJ mol–1

ΔHϴc [C2H5OH(l)] = –1367.3 kJ mol–1

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