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 Form 4 Energy Changes in Chemical and Physical Processes Questions and Answers

Use the information below to answer the questions that follow:
figenergy24420201153.JPG
(a) Define the term “enthalpy of formation” of a compound.
(b) Calculate the molar enthalpy of combustion, Δ H4 of ethanol;
#C_2H_5OH(l) +3O_2(g)→2CO_2(g)+3H_2O(l)#

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