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Considere a reação de combustão completa do etanol:

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Dadas as seguintes entalpias de formação:

Etanol:&nbsp;ΔHf = - 66,4 kcal/mol

Gás carbônico: &nbsp;ΔHf&nbsp;=&nbsp;- 94,1 kcal/mol

Água: ΔHf&nbsp;=&nbsp;- 68,3 kcal/mol

Qual é a entalpia de combustão do etanol (em kcal/mol) ?

Questão 3

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